U.S. PATENT AND TRADEMARK OFFICE
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U.S. Patent Classification System - Classification Definitions
as of June 30, 2000
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Class 366
AGITATING
Class Definition:
This is the residual class for apparatus for, and
corresponding methods of operating on fluid, viscous,
plastic, or fluent particulate material solely for causing
portions of the material to move irregularly with respect to
each other so as to intermix. The material may be in motion
or at rest immediately before agitation.
Apparatus for agitating articles which are treated in the
same manner as fluent particulate material will also be
included in this class, unless classified elsewhere.
This class (366) includes apparatus for forming colloid
systems (such as suspensions, emulsions) by agitation, not
elsewhere provided for. See LINES WITH OTHER CLASSES AND
WITHIN THIS CLASS, below, for related information.
This class (366) also includes stirrers, per se, which are
disclosed for use as agitators. However, see Lines With Other
Classes, below, for impellers.
{Note: Patents issued prior to 1945 have not in all instances
been classified by their claimed disclosure so that placement
of these older patents does not necessarily indicate lines of
classification.}
LINES WITH OTHER CLASSES AND WITHIN THIS CLASS
See appropriate composition classes for processes which form
colloid systems (such as emulsifying or foaming), and see
Class 516, Colloid Systems and Wetting Agents;
Subcombinations Thereof; Processes of Making, Stabilizing,
Breaking, or Inhibiting, for processes of making,
stabilizing, breaking, or inhibiting colloid systems when
such is generically claimed (no claimed art use for the
composition) or when there is no hierarchically superior
provision in the USPC for the specifically claimed art to the
composition of the colloid system.
See Class 241, Solid Material Comminution or Disintegration,
for the generically claimed subject matter of comminuting
solid material in a fluid to form or improve a non-colloid
suspension. Processes of forming non-colloid suspensions or
dispersions of solids in fluids, and in which the ingredients
of the non-colloid suspensions or dispersion are not claimed
with such particularity as to form a basis for classification
in Class 252, the that are an integral part therein, or some
other appropriate composition class, are classified in Class
241. In general, Class 241 provides for all apparatus for
forming suspensions of solids in fluids by comminution,
whether such suspensions are disclosed as colloid-sized or
not.
See Class 138, Pipes and Tubular Conduits, subclasses 40+ for
conduit provided with a flow restrictor disclosed for use in
forming emulsions of a plurality of fluids. Where such
apparatus has additional combined features, such as means to
feed material to the restrictor, etc., the patents have been
placed in this Class 366.
See Class 127, Sugar, Starch, and Carbohydrates, subclass 14,
for mixing devices for a sugar-bearing solution with other
liquids or solids for promoting the separation of impurities
from the solution.
See Class 366, Agitating, subclasses 69+ for apparatus which
may be used for working liquid into a gel, subclasses 101+
for apparatus which includes agitation and injection of gas
which may be a foam, subclasses 108+ for apparatus wherein
the agitation is effected by vibratory device, subclass
176.1+ for apparatus for forming suspensions or emulsions
wherein the feed means is in the form of a pump for forcing
the material through a narrow restriction for the purpose of
mixing the material, particularly for the purpose of
emulsifying or homogenizing the material, subclasses 279+ for
apparatus with rotatable stirrer which may be used for making
lather or foam, cross-reference art collection 604 for mixing
apparatus for making foam or lather, cross-reference art
collection 605 for mixing apparatus for stirring of paint.
See Class 416, Fluid Reaction Surfaces (i.e., Impellers),
appropriate subclasses for an impeller, per se, which may be
useful as a stirrer but where the disclosed use is solely as
an impeller, or alternatively as an impeller or stirrer.
Since agitation of material is incidental or ancillary to
many apparatuses for treating material for various purposes,
an agitator in combination with other means for treating
material will be found in the class providing for the
particular treatment. Similarly, an apparatus for treating or
handling material which inherently or incidentally agitates
the material will be included in the appropriate class
providing for the treating or handling means. Cross
references have been placed in this class (366) where the
agitating mechanism claimed in combination with other
treating means has been deemed to have general utility as an
agitator.
Also see References To Other Classes, below, for additional
lines between this class (366) and other classes and for
references to the following:
Apparatus Including Agitating Incidental to or Combined with
Other Primary Areas;
Agitating Apparatus Classified Elsewhere;
Feeding and Discharging Subcombinations;
Agitator Subcombinations Classified Elsewhere.
REFERENCES TO OTHER CLASSES
SEE OR SEARCH CLASS:
8, Bleaching and Dyeing; Fluid Treatment and Chemical
Modification of Textiles and Fibers, subclass 159 for
manipulative processes of agitating textile material immersed
in Liquid for purposes of mechanical or chemical treatment
other than impregnating or coating (e.g., washing, bleaching,
dyeing). (Apparatus Including Agitating Incidental To Or
Combined With Other Primary Function)
23, Chemistry: Physical Processes, 313 for a process of
agglomerating particulate nonmetallic elements or inorganic
compounds by agitation (Apparatus Including Agitating
Incidental To Or Combined With Other Primary Function)
34, Drying and Gas Vapor Contact With Solids, for a process
or apparatus for drying material including an agitating step
or means. (Apparatus Including Agitating Incidental To Or
Combined With Other Primary Function)
53, Package Making, appropriate subclasses for packaging
methods and apparatus including agitation of the material
packaged, and see particularly subclass 525 for apparatus
for agitating or jarring material in a filled container for
compacting the material. (Apparatus Including Agitating
Incidental To Or Combined With Other Primary Function)
53, Package Making, subclass 525 for apparatus for agitating
or jarring material in a filled container for the purpose of
compacting the material. (For Agitating Apparatus Classified
Elsewhere)
62, Refrigeration, appropriate subclasses for processed and
apparatus for removing heat from material which may include
agitation of the material. (Apparatus Including Agitating
Incidental To Or Combined With Other Primary Function)
65, Glass Manufacturing, 178 for glass working apparatus
combined with means for agitating molten glass. (Apparatus
Including Agitating Incidental To Or Combined With Other
Primary Function)
68, Textiles: Fluid Treating Apparatus, appropriate
subclasses, particularly 131 for apparatus for agitating
textile material immersed in liquid for purposes of
mechanical or chemical treatment other than impregnating or
coating (e.g., washing machine). (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
74, Machine Element or Mechanism, appropriate subclasses for
mechanisms which might be useful in transmitting motion to a
stirrer or a movable mixing chamber.
99, Food and Beverages: Apparatus, appropriate subclasses for
food treating apparatus of that class combined with agitating
means; see particularly 452 for apparatus for treating dairy
food, and subclasses 518+, 600+ and 623+ for grain hulling
agitating step. (Apparatus Including Agitating Incidental To
Or Combined With Other Primary Function)
118, Coating Apparatus, 400 for coating apparatus involving
agitation of the base and coating materials. (Apparatus
Including Agitating Incidental To Or Combined With Other
Primary Function)
126, Stoves and Furnaces, subclasses 155-157 for a grate
having agitating means for clearance of ashes or subclass
387.1 for an open-top liquid heating vessel that may include
a lid having an agitator or circulator using the heated
liquid within the vessel.
134, Cleaning and Liquid Contact With Solids, appropriate
subclasses for processes and apparatus for Cleaning or Liquid
Contact With Solids including a carrier or holder for the
solid, and also including agitation of the material to
promote, facilitate, or perfect the cleaning or Liquid
Contact. The agitation may be caused by movement of the
carrier through the Liquid or by a separate agitator.
(Apparatus Including Agitating Incidental To Or Combined With
Other Primary Function)
137, Fluid Handling, appropriate subclasses for transfer
process and apparatus for fluent material which includes
agitation or mixing of the material and see particularly 3
for processes, and subclasses 87+, 599+ and 602+ for
apparatus. (Apparatus Including Agitating Incidental To Or
Combined With Other Primary Function)
138, Pipes and Tubular Conduits, 40 for a conduit with a
flow restrictor or deflector disclosed for use in forming
emulsions of a plurality of fluids. Where such a conduit has
additional combined features, such as means to feed material
to restrictor, etc., the patents have been placed in Class
366, subclasses 176.1 or 336+. (For Agitating Apparatus
Classified Elsewhere)
165, Heat Exchange, subclass 109.1 for heat exchange
apparatus including agitating means for a fluent heat
exchange medium therein.(Apparatus Including Agitating
Incidental To Or Combined With Other Primary Function)
166, Wells, subclass 177.7 for agitating means in
combination with a well or disclosed solely for use in a
well. (For Agitating Apparatus Classified Elsewhere)
172, Earth Working, appropriate subclasses for methods and
apparatus for agitating earth in situ. (For Agitating
Apparatus Classified Elsewhere)
193, Conveyors, Chutes, Skids, Guides, and Ways subclass 2
and 11 for a chute combined with means to agitate the
material so as to aid its flow along the chute. (For Feeding
And Discharging Subcombinations)
198, Conveyors: Power-Driven, 750 for an oscillating
conveyor, and subclasses 752+ for a vibrating endless through
conveyor, per se. (For Feeding And Discharging
Subcombination)
201, Distillation: Processes, Thermolytic, subclass 33 for a
distillation process including the step of agitating the
charge in the carbonizing zone. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function
202, Distillation: Apparatus, subclass 175 and 265 for
distillation apparatus combined with agitating means for the
distalland. (Apparatus Including Agitating Incidental To Or
Combined With Other Primary Function)
204, Chemistry: Electrical and Wave Energy, subclass 221,
222, 223, 261, and 273, for electrolytic cells including
agitating means. (For Agitating Apparatus Classified
Elsewhere)
209, Classifying, Separating, and Assorting Solids,
appropriate subclasses for methods and apparatus directed to
subject matter of that class, and see particularly 233 for
the combination of a sifter with an agitator. (Apparatus
Including Agitating Incidental To Or Combined With Other
Primary Function)
210, Liquid Purification or Separation, appropriate
subclasses for methods and apparatus for separating solids
from Liquids, and see particularly 198.1 or a separator with
means to add treating material which may include agitating
means. (Apparatus Including Agitating Incidental To Or
Combined With Other Primary Function)
219, Electric Heating, 296 for an electric heating apparatus
for a Liquid with means to circulate the Liquid in a fixed
path in relation to heat surface so as to transfer heat to
the Liquid. Where electrical heating means is only broadly
claimed, placement will be in Class 366; but where details of
the heater or control means for the heater are claimed,
placement will be in Class 219. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
222, Dispensing, both Classes 222 and 366 have the
combination of a container and a device operable on the
container contents to mix the same, and means to discharge
the contents. Class 366 takes (1) agitators with means to
feed material thereto; (2) containers having means to
agitate, which means are inoperable to assist discharge
(e.g., where the agitator is inoperative during discharge)
and such means combined with additional dispensing means; and
(3) any means particularly designed to agitate with only an
incidental discharge assisting function (e.g., those device
in which the agitator must operate prior to a dispensing
operation, even though it operates during and assists the
discharge operation). Class 222 takes containers of any kind
with (1) devices particularly designed to convey material
therefrom or produce a force on the material therein, in a
discharge direction with only incidental agitation effect;
(2) agitators combined with other nongravity discharge
assistance and operable together only during the discharging
operation (the agitator-receptacle subcombination going to
Class 366); and (3) mere solid material bridge breakers
operable to promote gravity flow toward a claimed container
outlet or discharge assisting means. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
239, Fluid Sprinkling, Spraying, and Diffusing, appropriate
subclasses for processes an apparatus (1) for projection or
spraying material which required mixing just prior to or at
discharge (e.g., resin type cements), usually with a catalyst
to cause solidification or setting up, or (2) comprising
particular nozzle structure of type provided for in Class
239, combined with agitation or mixing of ingredients in the
supply means, provided the ingredients are not of the mortar
type provided for in Class 366, 1. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
241, Solid Material Comminution or Disintegration,
appropriate subclasses for processes and apparatus (1) in
which agitating steps or means are combined with comminuting
steps or means, or (2) which, by disclosure, will function to
comminute the material even if a mixing function is also
disclosed. (Apparatus Including Agitating Incidental To Or
Combined With Other Primary Function)
252, Composition, appropriate subclasses for processes of
making compositions provided therein which may include
agitation of the material, and see the notes to the main
class definition of Class 252. See also Lines With Other
Classes, above. (Apparatus Including Agitating Incidental To
Or Combined With Other Primary Function)
261, Gas and Liquid Contact Apparatus, appropriate subclasses
for a process or apparatus for mixing a liquid with a gas.
(For Agitating Apparatus Classified Elsewhere)
248, Supports, 128 for supports for mere movable
receptacles, and subclasses 146+ for supports for stationary
receptacles.
416, Fluid Reaction Surfaces (i.e., Impellers), appropriate
subclasses for an impeller, per se, which may be useful as a
stirrer but where the disclosed use in solely as an impeller,
or alternatively as an impeller or stirrer. (For Agitator
Subcombinations Classified Elsewhere)
425, Plastic Article or Earthenware Shaping or Treating:
Apparatus, subclass 222 for tumbling type agglomerating
apparatus for particulate material. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
427, Coating Processes, subclass 242 for processes of
coating by rumbling or tumbling. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
432, Heating, the residual class for generating heat and
applying it to materials, 121 for a heating chamber with
more than nominally recited heat generating means and
including means for guiding or moving material to be heated
through or moving material to be heated through or along
sections of the chamber, or for agitating such material
within the chamber. (Apparatus Including Agitating Incidental
To Or Combined With Other Primary Function)
435, Chemistry: Molecular Biology and Microbiology,
appropriate subclasses for fermentation processes and
apparatus; see particularly 290.3 for a composting apparatus
including an agitation means; subclasses 291.5+ for a malting
or mashing apparatus, including an agitation means;
subclasses 295.1+ for a bioreactor including a draft tube as
a means for agitation; subclass 296.1 for a bioreactor with a
sparging means for agitation; subclasses 297.2+ for perfusion
bioreactors; subclass 298.2 for a rotatably mounted
bioreactor; and subclass 303.3 for an agitated incubator.
(Apparatus Including Agitating Incidental To Or Combined With
Other Primary Function)
451, Abrading, 32 and 326+ for a process or apparatus
disclosed for use in tumbling a workpiece for the purpose of
abrading or surface finishing the workpiece. The abrading or
surface finishing may be solely by mutual attrition of the
workpieces or by an abrasive medium. (Apparatus Including
Agitating Incidental To Or Combined With Other Primary
Function)
475, Planetary Gear Transmission Systems or Components,
appropriate subclasses, for planetary gear transmissions
which might be used to transmit motion to a stirrer or mixing
chamber; and particularly subclass 11 for rotary planetary
output.
GLOSSARY:
AGITATOR
A stirrer or a deflector.
DEFLECTOR
(1) An element or device secured within and in fixed relation
to the mixing chamber, or (2) a stationary device in a
movable mixing chamber for diverting or separating portions
of material and then permitting them to recombine so as to
commingle, thus causing or assisting in agitation of the
material.
MATERIAL
A mass of fluid, viscous, particulate, or plastic substance
which is to be agitated.
MIXING CHAMBER
A space bounded on at least three sides by well structure
within which agitation takes place. The chamber may be in the
form of a trough, a conduit, or a container of any shape. A
supply reservoir or a conveyor for feeding material to a
mixing chamber and which includes means for agitating the
material prior to its entry into the mixing chamber will not
be considered a mixing chamber.
OSCILLATING
Rotating alternately in opposite directions about an axis.
RECIPROCATING RECTILINEARLY
Moving bodily back and forth in a straight line in the same
path so that at any instant, all parts of the moving body
move in the same direction at the same rate.
ROCKING
Moving back and forth as a result of a back and forth motion
of a curved surface on a flat surface.
ROTATING
Turning in but one direction about an axis.
STIRRER
A device which is movable by an applied force and which in
its movement causes agitation of material. The force may be
applied manually, by movement of the material, by relative
motion of the chamber, or by a power source, either directly
or through a drive train.
STIRRERS, PLURAL
Two or more devices or elements which are movable bodily by
an applied force and which move bodily relative to each other
an in such movement cause agitation of material. Where a
plurality of like or diverse stirrer elements are in fixed
relation to each other and move together as a unit they will
be considered a single stirrer even if the elements are
adjustable relative to each other prior to agitation or are
flexible so that portions thereof move relative to each other
during agitation.
SUBCLASSES
Subclass:
1
MORTAR MIXER TYPE:
This subclass is indented under the class definition.
Apparatus and corresponding methods peculiarly adapted for
mixing mortar, asphaltic and hydraulic cement, concretes, and
the like.
SEE OR SEARCH CLASS:
23, Chemistry: Physical Processes, subclass 287 for lime
hydrators.
172, Earth Working, subclass 371 for mortar mixing hoes.
404, Road Structure, Process, or Apparatus, appropriate
subclasses for (1) highway, pathway, or walkway structure,
per se, and (2) process and apparatus for making, installing,
repairing, or maintaining such structure, where such
structure, process or apparatus is not otherwise classifiable
as either (a) specifically provided for in other loci, or (b)
of such general utility as to be provided for on that basis
(see section III and IV under Class 404 class definition for
known collections of such nature and the particular lines of
demarcation).
Subclass:
2
Methods:
This subclass is indented under subclass 1. Processes of
mixing mortar, asphaltic or hydraulic cement, concrete, and
the like.
SEE OR SEARCH CLASS:
106, Compositions: Coating or Plastic appropriate subclass,
particularly 273 and 638+ for processes of making mortar,
asphaltic or hydraulic cement, concrete, and like which are
not distinct from the compositions thereof.
Subclass:
3
Gas incorporating; fluid mixing, delivering, or conveying:
This subclass is indented under subclass 2. Processes
comprising a step or steps of (1) incorporating air or gas
with the product, or (2) mixing, delivering, and/or conveying
the product through the medium of a fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
10 for corresponding apparatus.
SEE OR SEARCH CLASS:
406, Conveyors: Fluid Current, 86 for moving material along
a surface by means of or with the assistance of a fluid
current issuing from the surface and incidentally agitating
the material; and subclasses 136+ for agitation of material
in a receptacle which feeds to a fluid current conveyor.
Subclass:
4
With heating or cooling:
This subclass is indented under subclass 3. Processes which
include the steps of modifying the temperature of the
material.
(1) Note. The temperature modification may occur before,
during, or after agitation.
Subclass:
5
Gas incorporating at delivery:
This subclass is indented under subclass 3. Processes which
include the steps of introducing a fluid with a material at
the deliver.
Subclass:
6
Treatment or preparation of material:
This subclass is indented under subclass 2. Processes which
include other steps for making a material ready for mixing,
or modifying a material for the purpose of facilitating the
mixing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for process combinations involving gas incorporating,
fluid mixing, discharging, and/or conveying.
SEE OR SEARCH CLASS:
137, Fluid Handling, 3 for fluid handling processes,
including mixing plural fluids.
Subclass:
7
By heating or cooling:
This subclass is indented under subclass 6. Processes
wherein the treatment or preparation is the step of modifying
the temperature of the material.
Subclass:
8
By ingredient proportioning:
This subclass is indented under subclass 6. Processes
wherein the treatment or preparation is the step of
controlling the relative quantities of different materials
which are mixed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for corresponding apparatus.
160.1 for feed means of general utility for feeding material
in an adjustable ratio to a mixing chamber.
162.1 for feed means of general utility for feeding material
to a mixing chamber in a predetermined fixed ratio.
Subclass:
9
Gravity type:
This subclass is indented under subclass 1. Subject matter
wherein the mixing is effected by the single passage of
streams of materials through intersecting paths or over
baffles or the like obstructions which may be either
stationary or movable, at least one of said streams being
gravity impelled.
(1) Note. The term "single passage" is construed to exclude
mixers such as those having rotting or oscillating
receptacles which effect mixing by lifting and dropping
material over a baffle or baffles a plurality of times.
SEE OR SEARCH THIS CLASS, SUBCLASS:
336 for similar mixers of general application.
Subclass:
10
With gas incorporating; fluid mixing, delivering, or
conveying:
This subclass is indented under subclass 1. Subject matter
for (1) incorporating air or gas with a material, or (2)
having means for mixing, delivering and/or conveying a
material through the medium of a fluid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 for corresponding processes.
25 for apparatus for heating ingredients during mixing by
direct application of heated cases thereto.
SEE OR SEARCH CLASS:
222, Dispensing, 3 for gas dispensing, 630+ for fluid flow
discharge, and 195 for gas agitation.
406, Conveyors: Fluid Current, 86 for moving material along
a surface by means of or with the assistance of a fluid
current issuing from the surface and incidentally agitating
the material; and subclasses 136+ for agitation of material
in a receptacle which feeds to a fluid current conveyor.
Subclass:
11
Gas incorporating at delivery nozzle:
This subclass is indented under subclass 10. Subject matter
wherein the medium of a fluid is introduced with the material
at the delivery nozzle.
Subclass:
12
Into rotating mixing chamber:
This subclass is indented under subclass 10. Subject matter
wherein the medium of a fluid is introduced into a mixing
chamber which revolves about a fixed axis in one direction
only.
Subclass:
13
With rotatable stirrer:
This subclass is indented under subclass 10. Subject matter
wherein the medium of a fluid is introduced into a mixing
chamber which has a stirrer which turns in but one direction
about an axis.
Subclass:
14
Plural mixing chambers:
This subclass is indented under subclass 1. Subject matter
wherein the mixing is effected two or more separate mixing
chambers.
(1) Note. The mixing chambers may be arranged to have either
consecutive or alternative flow therethrough of the material
being mixed, and the chambers may be concentrically arrange.
(2) Note. Where agitation is provided for in a container or
conveyor and which agitation is incidental to the dynamic
charging of a mixing chamber from the container or conveyor.
Classification is in subclasses 30+.
(3) Note. For purposes of the classification, a
compartmented mixing chamber is considered to be a single
mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13 for a compartmental type rotatable mortar mixing
chamber.
Subclass:
15
Intercommunicating:
This subclass is indented under subclass 14. Subject matter
wherein the plural mixing chambers are in communication with
each other so that the material being mixed may flow from one
chamber to another.
Subclass:
16
With ingredient proportioning:
This subclass is indented under subclass 1. Subject matter
including means for controlling or regulating the ratio of
the ingredients to be mixed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 for corresponding process.
160.1 for mixing ratio control of general use.
SEE OR SEARCH CLASS:
137, Fluid Handling, 88 and 98+ for proportioning means, per
se.
177, Weighing Scales, subclass 61 for a weigh chamber
translatable among plural sources.
222, Dispensing, subclass 57 and 129+ for dispensing of
plural sources.
Subclass:
17
By condition sensing means:
This subclass is indented under subclass 16. Subject matter
wherein the amount of ingredients to be added to a batch of
mixed ingredients in the mixing chamber is controlled or
regulated by (1) means in said chamber to detect a condition
of said batch (e.g., temperature, density, etc.) or (2) means
external said chamber to detect a condition of the chamber,
per se (e.g., change in the amount of energy required to
rotate the chamber).
Subclass:
18
By weight:
This subclass is indented under subclass 16. Subject matter
wherein the ratio of the ingredients to be mixed is
controlled or regulated by respectively weighing a quantity
of each of a said ingredients, prior to charging the mixing
chamber with the same.
SEE OR SEARCH THIS CLASS, SUBCLASS:
141 for weighing material of general use.
Subclass:
19
By volume:
This subclass is indented under subclass 16. Subject matter
wherein the ratio of the ingredients to be mixed is
controlled or regulated by respectively measuring a quantity
of each of said ingredients volume, prior to charging the
mixing chamber with said ingredients.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.5 for feed means of general utility for proportioning
materials fed to a mixing chamber in which the volume of
material is measured.
Subclass:
20
By screw conveyor charging means:
This subclass is indented under subclass 16. Subject matter
wherein controlled or regulated by having a different
rotational speed and/or convolution size for the screw
conveyor means used to dynamically charge the mixing chamber
with said ingredients.
Subclass:
21
By varying opening of charging means:
This subclass is indented under subclass 16. Subject matter
wherein the ratio of ingredients to be mixed is controlled or
regulated by respectively adjusting the gets or valve means
at each other outlet opening of the charging means to vary
the size of said opening and thereby control the amount of
ingredients that egress the charging means and flow into the
mixing chamber.
Subclass:
22
With heating or drying:
This subclass is indented under subclass 1. Subject matter
including means to heat or dry a material before, during,
and/or after the mixing operation.
(1) Note. The material may be subjected to agitation during
the preheating operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for plural mortar mixers.
SEE OR SEARCH CLASS:
34, Drying and Gas or Vapor Contact With Solids, and see the
note to the main class definition for the line.
404, Road Structure, Process, or Apparatus, 90, 92, 95, and
108+ for road making apparatus including heating means.
Subclass:
23
Heating mixing chamber and ingredient preheater:
This subclass is indented under subclass 22. Subject matter
wherein the heating means heats the material prior to and
during the mixing in a mixing chamber.
Subclass:
24
Heating mixing chamber:
This subclass is indented under subclass 22. Subject matter
wherein the heating means heats a mixing chamber.
Subclass:
25
By hot gases to interior:
This subclass is indented under subclass 24. Subject matter
wherein the heating means is a high temperature fluid
introduced within the mixing chamber.
Subclass:
26
With elevating means:
This subclass is indented under subclass 1. Subject matter
including means for bodily raising and lowering the mixing
chamber as a unit to convey the chamber from a charging
station to a delivery station.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for mixer receptacles which merely tilt to dump.
SEE OR SEARCH CLASS:
212, Traversing Hoists, for elevating means of that class
type.
254, Implements or Apparatus for Applying Pushing or Pulling
Force, for elevating means of that class type.
414, Material of Article Handling, 592 for an elevator or
hoist and loading or unloading means therefor, and see the
search notes of that subclass for other subclasses of that
class (414) which include means for raising or lowering a
load.
Subclass:
27
With dynamic charging and dynamic delivery:
This subclass is indented under subclass 1. Subject matter
including means for directly applying a force to a material
in order to move the material toward or into the mixing
chamber and forcible removing material therefrom.
(1) Note. For purposes of this classification the term
"charging" has been limited to positively feeding aggregates
or conducting liquid to the mixer receptacle.
SEE OR SEARCH THIS CLASS, SUBCLASS:
16 for proportioning and feeding of ingredients.
Subclass:
28
Interrelated:
This subclass is indented under subclass 27. Subject matter
including means for mechanically or otherwise connecting the
charging and delivery means to operate in a related manner.
SEE OR SEARCH THIS CLASS, SUBCLASS:
131 for interrelated feed and discharge of mixers having
general use.
Subclass:
29
With automatic control means:
This subclass is indented under subclass 28. Subject matter
including means (1) to directly control the operation of the
charging and delivery means, or (2) to control the enabling
or disabling of devices for manually controlling the charging
and delivery means.
SEE OR SEARCH CLASS:
235, Registers, subclass 128 and 132 for rotation counters
with alarm or predetermined stop mechanism.
Subclass:
30
With dynamic charging:
This subclass is indented under subclass 1. Subject matter
including means for directly applying force to a material in
order to move the material toward or into the mixing chamber,
and the corresponding methods.
(1) Note. This subclass does not include those methods and
devices in which material is permitted to enter the mixing
chamber solely under the influence of gravity.
(2) Note. The material to which the force is applied may be
any one of the components of the mixture and may be liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
41 for a gravity type charge hopper or chute.
76.3 for a screw conveyor for feeding material into a rubber
or heavy plastic working apparatus.
Subclass:
31
By vibration:
This subclass is indented under subclass 30. Subject matter
wherein the force is applied to the material by vibrating
element in the path conducting the material to the mixing
chamber.
(1) Note. The vibrating element may be an element of the
device conducting the material to the mixing chamber.
(2) Note. The vibratory motion may be induced by a single
striking movement upon the vibrating element.
Subclass:
32
Of skip or hopper:
This subclass is indented under subclass 31. Subject matter
wherein the vibration is applied to one or more walls of a
skip or hopper supplying the material to the mixing chamber.
Subclass:
33
Plural charge means:
This subclass is indented under subclass 30. Subject matter
having more than one charging means.
(1) Note. Included herein are mixing chambers having both
dynamic and static (e.g., hopper) charger means.
(2) Note. If a single dynamic charge device applies force to
a plurality of streams of material, classification will be in
subclass 30.
Subclass:
34
Including dynamic liquid charge:
This subclass is indented under subclass 33. Subject matter
wherein at least one of the charge means applies force
directly to a liquid to move the liquid into the mixing
chamber.
(1) Note. The force applying means is generally of the pump
type. Where the force applying means is of the gravitational
type or is unspecified, classification will be in subclass 36
or 40, as appropriate.
(2) Note. Where such force applying means is the only charge
means, classification is in subclass 30.
Subclass:
35
Including screw conveyor:
This subclass is indented under subclass 33. Subject matter
wherein at least one of the charge means includes a screw
conveyor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
20 for ingredient proportioning by screw conveyor charging
means.
38 for a single charge by a screw conveyor.
Subclass:
36
Skip and liquid:
This subclass is indented under subclass 33. Subject matter
wherein the dynamic charge means is a skip or tilting bucket,
and another charge means conducts liquid to the mixing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
34 for a dynamic type liquid charge means.
SEE OR SEARCH CLASS:
414, Material or Article Handling, appropriate subclasses for
skip handling structure, per se.
Subclass:
37
Plural dynamic:
This subclass is indented under subclass 33. Subject matter
having more than one charge means and a force is applied
directly to the material in each charge means.
Subclass:
38
By screw conveyor:
This subclass is indented under subclass 30. Subject matter
wherein the force applying means is a screw conveyor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 for a similar device with additional charge means.
76.3 for a screw conveyor for feeding material into a rubber
or heavy plastic working apparatus.
Subclass:
39
Skip:
This subclass is indented under subclass 30. Subject matter
wherein the dynamic charge means is a skip or tilting
bucket.
SEE OR SEARCH THIS CLASS, SUBCLASS:
36 for a skip and liquid charging device.
SEE OR SEARCH CLASS:
414, Material or Article Handling, subclass 683 for a device
for loading a concrete mixer which device includes means for
swinging it in a vertical plane.
Subclass:
40
With liquid charge:
This subclass is indented under subclass 1. Subject matter
including means for supplying liquid to the mixing chamber
without the direct application of force to the liquid.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for dynamic charge liquid to the mixing chamber.
33 for charge of liquid additional to the dynamic charge of
other material to the mixing chamber.
Subclass:
41
Movable charge hopper or chute:
Subject matter under 1 wherein material is supplied to a
mixing chamber by a container or static conveyor, at least
one portion of which is capable of relative motion with
respect a mixing chamber.
(1) Note. Motion of the mixing chamber to effect mixing
(e.g., rotation) is not considered relative motion as used
herein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
30 for dynamic charge means.
33 for similar devices combined with dynamic charge means.
Subclass:
42
With dynamic delivery:
This subclass is indented under subclass 1. Subject matter
including (1) means movable to remove mixed material from a
mixing chamber, or (2) means to move a movably mounted mixing
chamber to effect discharge thereof.
Subclass:
43
Including automatic control means:
This subclass is indented under subclass 42. Subject matter
comprising automatic means (1) to directly control the
discharging means, or (2) to control the enabling or
disabling of devices for manually controlling the discharge
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
29 for intercontrol of feed and discharge.
Subclass:
44
Rotatable mixing chamber reversible for delivery:
Subject matter under 42 wherein the mixing chamber effects
agitation by rotation and has cooperating means therein to
effect delivery when rotated in the direction opposite to
that in which agitation is effected.
Subclass:
45
Mixing chamber tiltable for delivery:
This subclass is indented under subclass 42. Subject matter
wherein the mixing chamber is movably mounted so that it may
tilt and discharge its contents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26 for mixers which are bodily elevated from a loading to a
discharging position.
53 for oscillating mixers which move to an extreme position
to dump.
185 for tilting mixing chamber.
SEE OR SEARCH CLASS:
222, Dispensing, 160, especially subclass 166 for this type
of discharge means in general.
Subclass:
46
With stirrer:
This subclass is indented under subclass 45. Subject matter
wherein the mixing chamber has a stirrer therein.
Subclass:
47
Hand operated tilt:
This subclass is indented under subclass 45. Subject matter
wherein the mixing chamber has means associated therewith
enabling the operator to tilt the chamber by hand.
(1) Note. Included in this subclass are mixers that have a
manual lever or a hand crank for tilting the mixer.
Subclass:
48
Wheelbarrow-type support:
This subclass is indented under subclass 47. Subject matter
wherein the mixing chamber is supported on a frame comprising
two elements which have a single ground contacting wheel
there between forwardly of the chamber and which extend
rearwardly of the chamber to terminate in handle portions.
Subclass:
49
Endless belt:
This subclass is indented under subclass 42. Subject matter
wherein the means to remove the mixed material from the
chamber is an endless conveyor.
Subclass:
50
Rotary screw:
This subclass is indented under subclass 42. Subject matter
wherein the means to remove the mixed material from the
chamber is a rotatable auger screw conveyor.
Subclass:
51
Pump:
This subclass is indented under subclass 42. Subject matter
wherein the means to remove the mixed material from the
chamber is a pump which directly forces or induces material
from the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
50 wherein the pump is a rotary screw.
Subclass:
52
Scraper or deflector:
This subclass is indented under subclass 42. Subject matter
wherein the means for removing material from the mixing
chamber is a scraper or a deflector.
(1) Note. The scraper or deflector is so mounted as to
direct material through the discharge opening of the mixer.
Subclass:
53
Movable mixing chamber:
This subclass is indented under subclass 1. Subject matter
wherein mixing is effected by movement of the mixing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
26 for a mixing chamber moved bodily by elevating means
which also moves the chamber to effect mixing.
219 for agitators of general application with a movable
mixing chamber.
Subclass:
54
Rotatable:
This subclass is indented under subclass 53. Subject matter
wherein the mixing chamber turns about an axis in one
direction only.
(1) Note. Included herein are surface contacting rolling
chambers as well as wheel supported chambers wherein rolling
contact of the wheels causes rotation of the chamber.
(2) Note. The placement of a rotatable mixing chamber upon
an independently movable platform-type support is not deemed
to impart an additional motion to the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 and 220+, for a rotatable mixing chamber.
Subclass:
55
With additional diverse motion:
This subclass is indented under subclass 54. Subject matter
wherein the mixing chamber has a component of motion
additional to its rotation.
(1) Note. Included herein are surface contacting rolling
chambers as well as wheel supported chambers wherein rolling
contact of the wheels causes rotation of the chamber.
(2) Note. The placement of a rotatable mixing chamber upon
an independently movable platform-type support is not deemed
to impart an additional motion to the chamber.
Subclass:
56
With agitator:
This subclass is indented under subclass 54. Subject matter
wherein the rotatable mixing chamber includes an agitator
therein.
Subclass:
57
Rigid deflector fixed to chamber wall:
This subclass is indented under subclass 56. Subject matter
wherein the agitator is a nonflexible device secured within
the mixing chamber to divert a portion of the material to
assist agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
44 for a similar device in which reversal of the direction
of rotation causes the deflector to convey the material
through a discharge means.
52 for a similar device in which the deflector conveys the
material through a discharge means after agitation.
Subclass:
58
Compartmental-type chamber:
This subclass is indented under subclass 57. Subject matter
wherein the deflector forms a partition dividing the mixing
chamber into a plurality of sections.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14 for plural distinct mortar mixing chambers.
Subclass:
59
Helical:
This subclass is indented under subclass 57. Subject matter
wherein the deflector has a helical configuration.
Subclass:
60
With specified actuating or control means:
This subclass is indented under subclass 54. Subject matter
including a particularly described means for effecting
rotation of the mixing chamber.
(1) Note. Mere recitation of "drive means" of "actuating
means" for the mixing chamber will not be considered
specified actuating means.
Subclass:
61
Hydraulic drive or control:
This subclass is indented under subclass 60. Subject matter
wherein the actuating or control means includes a device
actuated or controlled by a liquid under pressure.
Subclass:
62
With specified support structure:
This subclass is indented under subclass 54. Subject matter
including a particularly described element of structure for
supporting the mixing chamber.
(1) Note. Mere recitation of "support", "support means
frame", and the like will not be considered specified support
structure.
Subclass:
63
Specified rotational mounting:
This subclass is indented under subclass 62. Subject matter
wherein the support structure includes a particularly
described element for permitting rotational movement of the
chamber about an axis.
Subclass:
64
Movable stirrer:
This subclass is indented under subclass 1. Subject matter
comprising a stirrer which has relative motion with respect
to a mixing chamber.
Subclass:
65
Vertical mixing chamber:
This subclass is indented under subclass 64. Subject matter
wherein the mixing chamber is used in an upright position
during agitation.
(1) Note. The mixing chamber is a tank, cylinder, etc.
Subclass:
66
Plural stirrers:
This subclass is indented under subclass 64. Subject matter
having more than one stirrer.
Subclass:
67
Including scraper, wiper, or brush:
This subclass is indented under subclass 64. Subject matter
including an element having an edge, or a plurality of
bristles movable in contact with or in close proximity to a
wall of the chamber for removing material from the wall
surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
309 for rotatable stirrer including a scraper, wiper, or
brush.
Subclass:
68
Movable chute:
This subclass is indented under subclass 1. Subject matter
comprising a static conveyor and at least one portion of
which is capable of relative motion with respect to a mixing
chamber.
Subclass:
69
RUBBER OR HEAVY PLASTIC WORKING:
This subclass is indented under the class definition.
Apparatus and method including a mixing chamber and an
agitator therein for use in kneading substantially
self-sustaining, semisolid, or heavy plastic material such as
clay, dough, gum, plastic, resin, or similar heavy plastic.
(1) Note. A patent for apparatus or method for mixing
ingredients for making a plastic mass and kneading the mass
will be placed in this or an indented subclass. However, an
apparatus or method for mixing the ingredients without
further kneading the mass will be placed in an appropriate
subclass elsewhere in this class.
(2) Note. In regard to the line between Class 241 and Class
366, see search note to Class 366 under Class 241 definition,
section 12.
(3) Note. Kneading is a process to work substantially
self-sustaining, semisolid, or heavy plastic material into a
uniform mixture by pressing, folding, and stretching.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, 98 for colloid systems of continuous or
semicontinuous solid phase with discontinuous liquid phase
(gels, pastes, flocs, coagulates) or agents for such systems
or making or stabilizing such systems or agents, when
generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art.
Subclass:
70
Candy puller type:
This subclass is indented under subclass 69. Subject matter
comprising spaced arms mounted for relative motion toward and
away from each other whereby said material is kneaded by
repeated stretching and recombining of stretched portions.
Subclass:
71
Roll couple and scraper:
This subclass is indented under subclass 69. Subject matter
wherein the agitator comprises a pair of rollers for pressing
the material therebetween and means for removing said
material therefrom.
SEE OR SEARCH THIS CLASS, SUBCLASS:
309 for a rotatable stirrer including a scraper, wiper, or
brush.
SEE OR SEARCH CLASS:
492, Roll or Roller, for a roll, per se, not elsewhere
provided for.
Subclass:
72
Roll couple and work handler:
This subclass is indented under subclass 69. Subject matter
wherein the agitator comprises a press couple comprises rolls
with means to adjust the space between each roll.
SEE OR SEARCH CLASS:
100, Presses, 155 for concurrent pressing and conveying
apparatus including a roll.
492, Roll or Roller, for a roll, per se, not elsewhere
provided for.
Subclass:
73
Roll couple having adjustment means:
This subclass is indented under subclass 69. Subject matter
wherein the agitator comprising a press couple comprises
rolls with means to adjust the space between each roll.
SEE OR SEARCH CLASS:
100, Processes, 155 for concurrent pressing and conveying
apparatus including a roll, and subclasses 168+ for roll
adjustment.
492, Roll or Roller, for a roll, per se, not elsewhere
provided for.
Subclass:
74
Roll traveling within platen:
This subclass is indented under subclass 69. Subject matter
wherein the agitator comprises a press couple including a
roll coacting with the interior of said mixing chamber or
receptacle type of platen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for a mixing means comprising a stirrer with a
stationary mixing chamber.
SEE OR SEARCH CLASS:
100, Presses, subclass 156 for a concurrent pressing and
conveying apparatus comprising external and internal rolls,
and subclass 210 for a roll and platen-type press.
Subclass:
75
With specified vent means:
This subclass is indented under subclass 69. Subject matter
including means in said mixing chamber or in a stirrer for
releasing gas from said mixing chamber.
Subclass:
76.1
With specified feed means:
This subclass is indented under subclass 69. Subject matter
including a particularly described means for conveying or
admitting material into said mixing chamber.
(1) Note. Mere recitation of an opening, inlet port, or feed
conduit for the material will not be considered specified
feed means. However, any of the following claimed particulars
will be considered specified means for this subclass: (a)
Means applying positive or negative pressure on material to
move it into the chamber (e.g., pump). (b) Conveyor means
(e.g., belt, screw, chute). (c) Feed control means (e.g.,
valve, gate). (d) Structure determining the proportions of
different material fed to the chamber. (e) A feed conduit
extending into the mixing chamber or in tangential relation
to the chamber. (f) A plurality of feeders (conduits, chutes,
hoppers, etc.) in a particular relation to each other and/or
to the mixing chamber. (g) A supply reservoir and means to
feed material from the reservoir into the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
150.1 for general purpose mixing apparatus having specified
feed means.
SEE OR SEARCH CLASS:
222, Dispensing, appropriate subclasses, for material
dispensing apparatus, per se. See References to Other Classes
in the class definition of this class (366) for the line
between Class 366 and Class 222.
Subclass:
76.2
Condition responsive:
This subclass is indented under subclass 76.1. Subject
matter including a detector for sensing a variable condition
of the apparatus or of the material and means for initiating
or modifying the movement of material into the mixing chamber
in response to a signal from the detector.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151.1 for condition responsive means in general purpose
mixing apparatus.
Subclass:
76.3
Screw feeder distinct from agitator:
This subclass is indented under subclass 76.1. Subject
matter wherein the means for conveying or admitting material
is a continuous helical blade which is rotated about its
longitudinal axis and is clearly distinguishable in function
and structure from the agitator in the mixing chamber
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 38, and 50, for a mortar mixer having a screw conveyor for
feeding material to or discharging material from a mixing
chamber.
133 and 156.1+, for a mixing apparatus in which material is
fed into a mixing chamber by a screw conveyor.
Subclass:
76.4
Plural screws:
This subclass is indented under subclass 76.3. Subject
matter wherein the means for conveying comprises more than
one rotary helical blade.
(1) Note. There may be a single feeder with plural screws or
plural feeders each of which has a screw.
SEE OR SEARCH THIS CLASS, SUBCLASS:
156.2 for a similar feed means for materials other than
rubber or heavy plastic in which material is fed into a
mixing chamber by a plurality of screw conveyors.
Subclass:
76.5
Roller feeder:
This subclass is indented under subclass 76.1. Subject
matter wherein the conveying or admitting means has an
elongated member which is rotated to feed material to the
mixing chamber.
Subclass:
76.6
Plural feed means:
This subclass is indented under subclass 76.1. Subject
matter including a plurality of means for conveying or
admitting material into the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177.1 for mixing apparatus of general utility having plural
feed means.
Subclass:
76.7
Piston feeder (e.g., ram):
This subclass is indented under subclass 76.1. Subject
matter including a member movable along a straight path in
the direction of feed of material to move the material into
the mixing chamber.
Subclass:
76.8
Mixing rotor having recess for material:
This subclass is indented under subclass 76.7. Subject
matter wherein the agitator comprises a rotor having a recess
or pocket (e.g., a blind bore) for receiving the material.
Subclass:
76.9
Chute or hopper with gravity discharge:
This subclass is indented under subclass 76.1. Subject
matter wherein material is supplied to the mixing chamber
solely by gravity by way of a chute or hopper.
(1) Note. A hopper is a funnel shaped container, usually,
but not necessarily used for dispensing solids. A chute is an
open-topped channel or conduit for guiding material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
41 for a movable charge hopper or chute for a mortar mixer.
68 for a movable chute for a mortar mixer.
181.1 for a mixing apparatus of general utility having
plural feeders including a chute or hopper with gravity
discharge to a mixing chamber.
183.1 for mixing apparatus including a static conveyor with
gravity discharge to a mixing chamber.
Subclass:
76.91
Having plural means to feed material to chute or hopper:
This subclass is indented under subclass 76.9. Subject
matter including plural means to feed material to the hopper
or chute.
SEE OR SEARCH THIS CLASS, SUBCLASS:
177.1 for a mixing apparatus including plural means for
feeding material to a mixing chamber.
Subclass:
76.92
Having discharge valve:
This subclass is indented under subclass 76.9. Subject
matter including a gate or closure for controlling release of
material from the chute or hopper.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181.3 for a hopper having a gate or valve in an outlet
thereof.
182.3 for a container with a valved outlet.
Subclass:
76.93
Including specific structure for controlling flow through the
feed means:
This subclass is indented under subclass 76.1. Subject
matter including particularly described means to start, stop,
or regulate the flow of material in the feed means.
(1) Note. More than the mere recitation of a valve or pump
is required for placement of a patent in this subclass. There
must be a claim of valve details, a valve operator mechanism,
pump feed rate adjustment means, or other feature directly
related to adjustment or control of the material flow rate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.1 through 160.5, for apparatus including mixing ratio
control means.
165.4 for feed means including a flow regulator in a mixing
apparatus in which material has rotary motion.
182.1 for feed means including details of means for
controlling flow through the feed means.
Subclass:
77
With specified discharge means:
This subclass is indented under subclass 69. Subject matter
including a particularly described means for conveying or
releasing said material from said mixing chamber.
(1) Note. Mere recitation of an opening, outlet port, or
discharge conduit for the material will not be considered
specified discharge means. However, any of the following
claimed particulars will be considered as specified means for
this subclass: (a) Means applying pressure on the material to
move it out of the chamber (e.g., pump). (b) Conveyor means
(e.g., belt, chute, screw). (c) Discharge control means
(e.g., valve gate).
SEE OR SEARCH THIS CLASS, SUBCLASS:
184 for discharge means of general application.
Subclass:
78
Rotating and reciprocating stirrer:
This subclass is indented under subclass 69. Subject matter
including a stirrer which turns in but one direction about a
fixed axis and moves back and forth in a straight line along
said fixed axis simultaneously or alternately to produce
mixing and kneading.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for rotating and reciprocating stirrer within stationary
mixing chamber of general utility.
Subclass:
79
Stirrer is through-pass screw conveyor:
This subclass is indented under subclass 69. Subject matter
wherein the mixing chamber is designed to receive material at
one end of a path and to discharge it at the other end in a
continuous flow, and said agitator comprises a stirrer having
a helical ribbon or thread type conveyor rotatable so as to
mix and knead the material concurrent with conveying it
through said path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
318 for screw-type stirrer within a stationary mixing
chamber.
SEE OR SEARCH CLASS:
100, Presses, 144 for a concurrent pressing and conveying
apparatus of general application. See the search notes in
Class 100, subclass 144.
198, Conveyors: Power-Driven, 657 for a conveying element of
the screw type.
415, Rotary, Kinetic Fluid Motors or Pumps, 72 for a pump
including a rotary screw.
Subclass:
80
With deflector:
This subclass is indented under subclass 79. Subject matter
including a device secured within and in fixed relation to
said mixing chamber for assisting said conveyor in mixing and
kneading.
SEE OR SEARCH THIS CLASS, SUBCLASS:
336 for stationary deflector in flow-through mixing chamber
of general utility.
Subclass:
81
With additional stirrer element on screw conveyor:
This subclass is indented under subclass 79. Subject matter
wherein said conveyor includes an additional element on the
ribbon or thread (e.g., pin, blade, rib) to assist mixing and
kneading.
SEE OR SEARCH THIS CLASS, SUBCLASS:
319 for screw-type stirrer with additional agitator on screw
within a mixing chamber of general utility.
Subclass:
82
Ring or disk:
This subclass is indented under subclass 81. Subject matter
wherein the additional stirrer element comprises an annulus
integral with or affixed to the shaft of said conveyor.
(1) Note. The ring or disk may be apertured, grooved, or may
have other outer surface configuration.
Subclass:
83
Plural screw conveyors on separate shafts:
This subclass is indented under subclass 9. Subject matter
comprising separate shafts for distinct helical ribbon or
thread-type conveyors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
292 for plural stirrers within a stationary mixing chamber
of general utility.
Subclass:
84
In parallel intercommunicating mixing chambers:
This subclass is indented under subclass 83. Subject matter
wherein said conveyors are located within a plurality of
mixing chambers having main axes parallel to each other and
each mixing chamber is in communication with each other so
that material may flow from one mixing chamber to another.
SEE OR SEARCH THIS CLASS, SUBCLASS:
290 for stirrer in at least one of intercommunicating
adjacent mixing chambers having general utility.
301 for kneaders in plural chambers.
Subclass:
85
Screw conveyors intermeshing:
This subclass is indented under subclass 84. Subject matter
wherein one of said conveyors has a profile which contacts a
mating surface of parallel screw conveyor along the length
thereof.
SEE OR SEARCH THIS CLASS, SUBCLASS:
301 for parallel stirrers intermeshing with each other in a
mixing chamber of general utility.
Subclass:
86
Intercommunication by conduit:
This subclass is indented under subclass 84. Subject matter
wherein the communication between each mixing chamber is by
means of an elongated, hollow tube.
Subclass:
87
And downstream breaker plate or screen:
This subclass is indented under subclass 79. Subject matter
including foraminous means (e.g., grate, lattice, screen,
etc.) located at the discharge end of said conveyor.
Subclass:
88
Including sections of different pitch:
This subclass is indented under subclass 79. Subject matter
wherein the spacing of thread or helical ribbon on a portion
of said conveyor differs from the spacing of said thread or
said helical ribbon on another portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321 screw-type stirrer with opposite pitch in a mixing
chamber of general utility.
323 screw-type stirrer with varying pitch in a mixing
chamber of general utility.
Subclass:
89
Varying diameter of shaft:
This subclass is indented under subclass 79. Subject matter
wherein the diameter of a portion of the shaft of said
conveyor differs from the diameter of the shaft on another
portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
323 for screw-type stirrer with varying convolutions or
shank or varying pitch in a mixing chamber of general
utility.
Subclass:
90
Notched, apertured, or interrupted thread:
This subclass is indented under subclass 79. Subject matter
wherein said thread or said helical ribbon has an opening
therethrough or a discontinuous portion thereon.
SEE OR SEARCH THIS CLASS, SUBCLASS:
322 for discontinuous screw stirrers in a mixing chamber of
general utility.
324 for screw-type stirrer with apertured or notched threads
in a mixing chamber of general utility.
Subclass:
91
Plural mixing chambers:
This subclass is indented under subclass 69. Subject matter
wherein said material is kneaded within a plurality of mixing
chambers.
(1) Note. Mixing chambers which are in communication with
each other so that material may flow from one chamber to
another will be placed in this subclass. Moreover, the
communication may be by means of a conduit, or through a
conduit, or through or across a portion separating the
chambers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
290 for stirrer within at least one of intercommunicating
adjacent mixing chambers of general utility.
Subclass:
92
With means to move mixing chamber:
This subclass is indented under subclass 69. Subject matter
including a particularly described means for moving said
mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
130 for an operator supported mixing chamber of general
utility.
197 for a mixing chamber of general utility removable from
stirrer and support.
208 for agitation by movement of support for a mixing
chamber of general utility.
219 for agitation by movement relative to a stationary
support of a mixing chamber having general utility.
Subclass:
93
Rotating mixing chamber:
This subclass is indented under subclass 92. Subject matter
wherein said mixing chamber turns in but one direction about
its own axis.
Subclass:
94
With rotating stirrer:
This subclass is indented under subclass 93. Subject matter
including a stirrer which turns in but one direction about a
fixed axis within said rotating mixing chamber.
Subclass:
95
Single stirrer:
This subclass is indented under subclass 94. Subject matter
wherein only one rotating stirrer is within said rotating
mixing chamber.
(1) Note. Where a plurality of like or diverse stirrer
elements are in fixed relation to each other and move
together as a unit they will be considered as single stirrer
even if the elements are adjustable relative to flexible so
that portions thereof move relative to each other during
agitation.
Subclass:
96
Stationary mixing chamber:
This subclass is indented under subclass 69. Subject matter
wherein said mixing chamber is in a fixed position during
kneading.
SEE OR SEARCH THIS CLASS, SUBCLASS:
241 for stirrer within stationary chamber for general
application.
Subclass:
97
With rotating stirrer:
This subclass is indented under subclass 96. Subject matter
comprising a stirrer which turns in but one direction about a
fixed axis within said stationary mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for a rotatable stirrer in a fixed mixing chamber with
general utility.
Subclass:
98
Single stirrer:
This subclass is indented under subclass 97. Subject matter
wherein only one rotating stirrer is within said stationary
mixing chamber.
(1) Note. Where a plurality of like or diverse stirrer
elements are in fixed relation to each other and move
together as a unit they will be considered a single stirrer
even if the elements are adjustable relative to each other
prior to agitation or are flexible so that portions thereof
move relative to each other during agitation.
Subclass:
99
Horizontal:
This subclass is indented under subclass 98. Subject matter
wherein the axis of said rotating single stirrer is
horizontal.
Subclass:
100
Stirrer with specified drive means:
This subclass is indented under subclass 69. Subject matter
wherein the mixing chamber includes a stirrer and a
particularly described means for drive said stirrer to mix
and knead.
(1) Note. Mere recitation of a motor would not be considered
as specified drive means.
Subclass:
101
BY INJECTING GAS INTO MIXING CHAMBER:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein the agitation is
effected by the introduction of a gas under pressure into
contact with the material in the mixing chamber.
(1) Note. The injection of gas into a liquid must be
primarily for agitating the liquid. If the primary purpose is
to mix the gas with the liquid, placement will be in Class
261, and see note to that class below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163.1 for a device wherein material, which may include air,
is fed into the mixing chamber by suction.
SEE OR SEARCH CLASS:
222, Dispensing, subclass 195 for dispensing combined with
gas agitation.
239, Fluid Sprinkling, Spraying, and Diffusing, subclass 143
for gas effected agitation of supply for a fluid sprinkling
or spraying device, and subclasses 654+ for gas effected
agitation of supply for nonfluid material sprinkling or
spraying device.
261, Gas and Liquid Contact Apparatus, appropriate subclasses
for apparatus for mixing a liquid with a gas.
406, Conveyors: Fluid Current, subclass 88, 90+, and 136+ for
agitation of a solid material in a receptacle by injecting
gas into the receptacle.
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, 10 for foam colloid systems or agents for such
systems or making or stabilizing such systems or agents, when
generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art.
Subclass:
102
With stirrer:
This subclass is indented under subclass 101. Subject matter
which also includes a stirrer in the chamber.
Subclass:
103
Plural stirrers:
This subclass is indented under subclass 102. Subject matter
wherein there is more than one stirrer.
Subclass:
104
Diverse:
This subclass is indented under subclass 103. Subject matter
wherein one stirrer differs in structure from another
stirrer.
Subclass:
105
Into rotating mixing chamber:
This subclass is indented under subclass 101. Subject matter
wherein the chamber is rotatable and the gas is injected into
the chamber while it is rotating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
219 for a chamber which is rotatable and has additional
motion.
220 for a rotatable mixing chamber.
Subclass:
106
Intermittent or pulsating feed:
This subclass is indented under subclass 101. Subject matte
wherein the gas is introduced in recurrent interrupted
sequence or in recurrent variation in flow rate.
Subclass:
107
Plural gas feeders:
This subclass is indented under subclass 101. Subject matter
wherein the gas is introduced into the chamber through more
than one feeder.
Subclass:
108
BY VIBRATION:
This subclass is indented under the class definition.
Apparatus and corresponding methods wherein the agitation of
the material is effected by the action of a vibratory device
producing rapid to and from movement of portions of the
material, of the mixing chamber, of a portion of the chamber
well or of a stirrer, or by rapid to and from movement of a
stirrer energized by flow of the material there against.
(1) Note. A patent for vibratory device, per se, disclosed
for use as a stirrer by insertion with a mass of of material
will be place in subclasses 117+ below, and see the search
notes thereto.
SEE OR SEARCH CLASS:
134, Cleaning and Liquid Contract With Solids, subclass 1
for a method of cleaning articles by vibration.
222, Dispensing, 196 for dispensing combined with agitation
by vibration.
414, Material or Article Handling, subclass 683 for a device
for loading a concrete mixer, which device includes means for
swinging it in a vertical plane.
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, appropriate subclasses for subject matter
relating to: colloid systems (such as sols*, emulsions,
dispersions, foams, aerosols, smokes, gels, or pastes) or
wetting agents (such as leveling, penetrating, or spreading);
subcombination compositions of colloid systems containing at
least an agent specialized and designed for or peculiar to
use in making or stabilizing colloid systems; compositions
and subcombination compositions specialized and designed for
or peculiar to use in breaking (resolving) or inhibiting
colloid systems; processes of making the compositions or
systems of the class; processes of breaking (resolving) or
inhibiting colloid systems; in each instance, when
generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art.
Subclass:
109
Including endless conveyor:
This subclass is indented under subclass 108. Subject matter
including an endless means (e.g., belt, chain, rotary turret)
for moving the material, or a mixing chamber containing the
material through a zone where the agitation takes place.
Subclass:
110
Of holder for mixing chamber:
This subclass is indented under subclass 108. Subject matter
wherein the vibrator device is attached to a receptacle or
clasp for the mixing chamber, and wherein the vibration of
the mixing chamber results from the operation of the
vibratory device.
(1) Note. For proper placement of a patent in this subclass,
the mixing chamber does not have to be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 for a device wherein the mixing chamber is removable
from a stirrer and its support.
208 for agitation by mechanical movement of a support for a
removable mixing chamber.
219 for agitation of material by mechanical movement of a
mixing chamber relative to a stationary support.
Subclass:
111
Of platform or mixing chamber supported by vibrator:
This subclass is indented under subclass 108. Subject matter
wherein the vibratory device directly supports the mixing
chamber or a platform for supporting the mixing chamber.
(1) Note. For proper placement of a patent in this subclass,
the mixing chamber does not have be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
114 for a device wherein a platform for the mixing chamber
is attached to the vibratory device.
197 for a device wherein the mixing chamber is removable
mixing chamber.
219 for agitation of material by mechanical movement of a
mixing chamber relative to a stationary support.
Subclass:
112
Supported by vibrator solely:
This subclass is indented under subclass 111. Subject matter
wherein the platform of the mixing chamber is supported
solely by the vibratory device.
Subclass:
113
Vibrator mounted in aperture of mixing chamber bottom wall:
This subclass is indented under subclass 108. Subject matter
wherein the vibratory device is secured in an opening in the
bottom wall of the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 for a mixing chamber removable from the stirrer and its
support.
208 for agitation by mechanical movement of a support for
the mixing chamber.
219 for agitation of material by mechanical movement of a
mixing chamber relative to a stationary support.
Subclass:
114
Vibrator attached to mixing chamber wall or platform:
This subclass is indented under subclass 108. Subject matter
wherein the vibratory device is fastened to the mixing
chamber wall or to platform adapted to support the mixing
chamber.
(1) Note. For proper placement of a patent in this subclass,
the mixing chamber does not have to be claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
111 for a device wherein a platform for the mixing chamber
is merely supported by the vibratory device.
Subclass:
115
By bonding:
This subclass is indented under subclass 114. Subject matter
wherein the vibratory device is adhered or welded to the
mixing chamber wall or to the platform.
Subclass:
116
With amplitude or frequency regulator:
This subclass is indented under subclass 108. Subject matter
including means for regulating or controlling the amplitude
or frequency of the vibration.
(1) Note. Mere recitation of a switch with no particularly
described means for regulating the frequency or the amplitude
of the vibration is not sufficient for placement of a patent
in this subclass.
Subclass:
117
Of stirrer:
This subclass is indented under subclass 108. Subject matter
wherein the agitation of the material is effected by a
stirrer activated by a vibratory device, or wherein the
stirrer is a vibratory device acting directly on the
material.
(1) Note. A patent for a vibratory device, per se, disclosed
for use as a stirrer by insertion within a mass of material
will be placed in this or an appropriate indented subclass.
SEE OR SEARCH CLASS:
74, Machine Element or Mechanism, subclasses 20-110 for a
mechanical vibrator, per se.
173, Tool Driving or Impacting, appropriate subclass for the
combination of a toll and a tool driving or impacting means
which combination is not limited to a specific tool art, such
as specific shape of the work contacting portion of the tool,
related tools, or an opposed work support.
310, Electrical Generator or Motor Structure, 328 for
piezoelectric vibrators.
Subclass:
118
In mixing chamber:
This subclass is indented under subclass 117. Subject matter
wherein the stirrer is within a mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
243 for an oscillatable stirrer mounted in a removable
closure of a stationary mixing chamber.
276 for an oscillatable stirrer within a stationary mixing
chamber.
Subclass:
119
Actuated by flow of material:
This subclass is indented under subclass 118. Subject matter
wherein the flow of the material thereagainst as it is fed
into the mixing chamber.
Subclass:
120
Pencil type:
This subclass is indented under subclass 117. Subject matter
wherein the stirrer comprises an elongated slender housing
enclosing the vibratory device and which is intended for
insertion manually into the material by the user.
Subclass:
121
With lubricating means:
This subclass is indented under subclass 120. Subject matter
including means to lubricate the moving parts in the
stirrer.
Subclass:
122
Specified end structure:
This subclass is indented under subclass 120. Subject matter
including structure mounted at either end of the stirrer
(e.g., nose cap, handle, etc.).
Subclass:
123
Actuated by rotary movement of unbalanced- weight shaft:
This subclass is indented under subclass 120. Subject matter
wherein the vibration of the stirrer is caused by the
unbalanced weight which is mounted eccentrically on a
rotatable shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
128 for a general type of vibrator actuated by rotary
movement of unbalanced-weight shaft.
SEE OR SEARCH CLASS:
173, Tool Driving or Impacting, subclass 49 for a drive
means for a tool as provided for in that class which includes
a rotating eccentric mass.
Subclass:
124
Vibrator actuated by fluid under pressure:
This subclass is indented under subclass 108. Subject matter
wherein the vibratory device causes vibration of the material
or of a portion of the chamber wall, the vibration of the
device being caused by the flow of fluid under pressure
within the device.
Subclass:
125
Including shaft with radially movable element:
This subclass is indented under subclass 124. Subject matter
wherein the vibratory device comprises a shaft, a cylindrical
housing for the shaft, and a radially movable element (e.g.,
blade, vane, ball, pin) on said shaft, the fluid acting on
the element or the housing to cause eccentric rotation of the
shaft or orbital movement of the housing relative to the
shaft and thus causing vibration of the housing.
Subclass:
126
Fluid acting on orbital rolling ball:
This subclass is indented under subclass 124. Subject matter
wherein the vibratory device comprises a sphere guided for
rolling movement along a generally circular or elliptical
path by pressure of the fluid thereagainst, the movement of
the sphere causing the vibration of the device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
125 for a device wherein a ball is movable radially with
respect to a shaft within a cylindrical housing.
Subclass:
127
By electrostrictive or magnetostrictive transducer:
This subclass is indented under subclass 108. Subject matter
wherein the vibration is caused by periodic deformation of a
dielectric body as the result of an applied electric or
magnetic field.
Subclass:
128
By rotary movement of unbalanced-weight shaft:
This subclass is indented under subclass 108. Subject matter
wherein the vibration of the device is caused by movement of
an unbalanced weight which is mounted eccentrically on a
rotatable shaft.
SEE OR SEARCH THIS CLASS, SUBCLASS:
120 for a similar device of the pencil type.
Subclass:
129
OPERATOR SUPPORTED:
This subclass is indented under the class definition.
Apparatus and corresponding methods comprising a stirrer
and/or mixing chamber which is entirely sustained against the
force of gravity by the user during agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
117 for an operator supported vibratory stirrer.
Subclass:
130
Mixing chamber type:
This subclass is indented under subclass 129. Subject matter
wherein a mixing chamber is so held by the user.
(1) Note. Included in this subclass are patents for
receptacles with internal deflector structure wherein the
agitation is effected by manual manipulation of the
receptacle as a whole by the user.
SEE OR SEARCH THIS CLASS, SUBCLASS:
110 for an apparatus including a holder for a chamber and
means to cause vibration of the holder to effect agitation of
material in the chamber.
209 for apparatus including means to secure a chamber to a
movable support and means to move the support to effect
agitation of material in the chamber.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, 219 for a package of two
or more separated materials which are adapted to be
commingled within the package by manipulation of the package
or a part thereof.
220, Receptacles, appropriate subclasses for receptacle
without deflectors and which are disclosed to be manipulated
for agitation.
Subclass:
131
HAVING INTERRELATED FEED AND DISCHARGE MEANS:
This subclass is indented under the class definition.
Apparatus and corresponding methods including external means
to convey or admit material into the mixing chamber and means
to convey or release the material therefrom and wherein said
means: (a) are interconnected by a duct or conveyor
exteriorly of the chamber for returning discharge material to
the chamber; (b) have a common control system for regulating
movement of material into and out of the chamber. (c) have a
single mechanism for moving the material into and out of the
chamber, or (d) are specifically related to each other by
their relative size.
(1) Note. The feed and discharge may be through a common
opening.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76.3 for a screw conveyor for feeding material into a rubber
or heavy plastic working apparatus.
139 for a device including means to produce a partial vacuum
in the mixing chamber which means may also serve to move
material into and/or out of the chamber.
Subclass:
132
Including means to monitor or control operation:
This subclass is indented under subclass 131. Subject matter
including a common control system for regulating movement of
material into and out of the chamber, and also including a
detector for sensing a variable condition of the apparatus or
of the material and initiating or modifying operation of a
part of the apparatus in response to signal from the
detector.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151.1 for an apparatus wherein the feed means is responsive
to a condition-sensor.
Subclass:
133
By single endless or screw conveyor:
This subclass is indented under subclass 131. Subject matter
wherein a single endless or screw conveyor serves to either
move material into and out of the chamber or to return
discharged material to the mixing chamber.
Subclass:
134
Plural feed or discharge means:
This subclass is indented under subclass 131. Subject matter
wherein there is more than one feed or discharge means in a
particular relation to each other and/or to the mixing
chamber.
Subclass:
135
Rotatable mixing chamber:
This subclass is indented under subclass 131. Subject matter
wherein the agitation takes place in a mixing chamber that
rotates in one direction only.
Subclass:
136
Recirculating from and to mixing chamber:
This subclass is indented under subclass 131. Subject matter
wherein the feed and discharge means are interconnected by a
duct exteriorly of the mixing chamber for returning at least
a portion of discharge material to the chamber.
Subclass:
137
Directly:
This subclass is indented under subclass 136. Subject matter
wherein the discharge material is returned without
interruption to the mixing chamber.
Subclass:
137.1
JET OR SPRAY IMPINGING FREE-FALLING STREAM:
This subclass is indented under the class definition.
Subject matter wherein material is mixed by directing a jet
or spray of one material into contact with a free-falling
stream of another material so as to intermix the material of
the jet and the stream.
(1) Note. The free-falling stream of material may be solid
or liquid. The material is considered free-falling if it is
unconfined or substantially uninfluenced in its motion by any
adjacent surfaces or the like during its fall through a gas.
Subclass:
138
WITH FLUSHING OF MIXING CHAMBER:
This subclass is indented under the class definition.
Apparatus and corresponding methods provided with means, in
addition to inlet and outlet means for the material to be
agitated, for introducing a cleansing fluid into the mixing
chamber.
Subclass:
139
IN VACUUM CHAMBER:
This subclass is indented under the class definition.
Apparatus and corresponding methods including means for
producing a partial vacuum in the mixing chamber during
agitation.
(1) Note. Substantially the entire contents of the mixing
chamber must be under reduced (subatmospheric) pressure.
Where the contents are not and localized vacuum or suction is
created to feed material into the chamber, placement is as
indicated in the search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
163.1 for a device provided with suction means for feeding
material into the mixing chamber.
Subclass:
140
WITH SAMPLING:
This subclass is indented under the class definition.
Apparatus and corresponding methods including means for or a
step of segregating or removing a portion of the material for
the purpose of inspection examination, or testing.
Subclass:
141
WITH WEIGHING:
This subclass is indented under the class definition.
Apparatus and corresponding methods including means for or a
step of determining the weight of a segregated quantity of
material.
Subclass:
142
WITH TEST, SIGNAL, OR INDICATOR MEANS:
This subclass is indented under the class definition.
Apparatus and corresponding methods with means for (a)
determining a property or characteristic of the material for
the purpose of indicating the property or (b) producing or
providing a perceptible manifestation (e.g., audible or
visible) of a condition of a part of the apparatus or of a
condition or rate of flow of the material.
(1) Note. If feeding of material is automatically controlled
by or in response to the determining means, placement is as
indicated in the search notes below.
SEE OR SEARCH THIS CLASS, SUBCLASS:
151.1 for mixing apparatus having feed means responsive to a
condition sensor.
Subclass:
143
WITH INSPECTION MEANS (E.G., WINDOW):
This subclass is indented under the class definition.
Apparatus and corresponding methods including means for
viewing a part of the apparatus or a portion of the
material.
Subclass:
144
WITH HEATING OR COOLING:
This subclass is indented under the class definition.
Apparatus and corresponding methods including means for
modifying the temperature of the material.
(1) Note. The temperature modification may occur before,
during, or after agitation.
(2) Note. See the class definition for class lines with
other heating or cooling classes.
SEE OR SEARCH CLASS:
99, Foods and Beverages: Apparatus, subclass 348 for a
cooking apparatus combined with means to stir material while
it is cooking.
126, Stoves and Furnaces, subclass 387.1 for an open-top
liquid heating vessel that may include a lid having an
agitator or circulator using the heated liquid within the
vessel.
Subclass:
145
Including temperature control:
This subclass is indented under subclass 144. Subject matter
including means for regulating the temperature.
Subclass:
146
Electrical heating:
This subclass is indented under subclass 144. Subject matter
wherein the material is heated by means of an electric
current moving through a resistance element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
145 for electrical heating combined with a temperature
control.
SEE OR SEARCH CLASS:
219, Electric Heating, 296 for an electric heating apparatus
for a liquid with means to circulate the liquid in a fixed
path in relation to a heated surface so as to transfer heat
to the liquid. Where electrical heating means is only broadly
claimed, placement will be in Class 366; but where details of
the heater or control means for the heater are claimed,
placement will be in Class 219.
Subclass:
147
Medium in stirrer or mixing chamber:
This subclass is indented under subclass 144. Subject matter
wherein the temperature modifying means includes means for
circulating a heated or cooled fluid (e.g., gas, water) in
the stirrer or for admitting such fluid in to the chamber.
Subclass:
148
Of supply:
This subclass is indented under subclass 144. Subject matter
wherein the temperature modification of the material is
effected prior to its entry into the mixing chamber.
Subclass:
149
Fluid-filled jacket:
This subclass is indented under subclass 144. Subject matter
including wall structure surrounding the mixing chamber in
spaced relation to provide a cavity for a fluid heating or
cooling medium.
SEE OR SEARCH THIS CLASS, SUBCLASS:
144 for a device including a heating or cooling conduit
coiled about the mixing chamber.
204 for a container which supports a mixing chamber and
where a cooling means can be placed in the container.
Subclass:
150.1
HAVING SPECIFIED FEED MEANS:
This subclass is indented under the class definition. An
apparatus or corresponding method including a particularly
described means for conveying or admitting material (i.e.,
feed means) into the mixing chamber.
(1) Note. Mere recitation of an opening, inlet port, or feed
conduit for the material is not considered specified feed
means. However, any of the following claimed particulars are
considered specified means for this subclass: (a) means
applying positive or negative pressure on material to move it
into the chamber (e.g., pump); (b) conveyor means (e.g.,
belt, screw, chute); (c) feed control means (e.g., valve,
gate); (d) structure determining the proportions of different
materials fed to the chamber; (e) a feed conduit extending
into the mixing chamber or in tangential relation to the
chamber; (f) a plurality of feed means (conduits, chutes,
hoppers, etc.) in a particular relation to each other or to
the mixing chamber; or (g) a supply reservoir and means to
feed material from the reservoir into the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
27 30+, and 40, for a mortar mixer type apparatus having
means for feeding material into a mixing chamber.
76 for a rubber or heavy plastic working apparatus having
specified feed means.
131 for a device wherein the feed means and the discharge
means are interrelated.
SEE OR SEARCH CLASS:
222, Dispensing, appropriate subclasses, for material
dispensing apparatus, per se. See References to Other Classes
in the Class definition of this class (366) for the line
between Class 366 and Class 222.
Subclass:
151.1
Responsive to condition sensor:
This subclass is indented under subclass 150.1. Subject
matter including a detector for sensing a variable condition
of the apparatus or of the material and means for initiating
or modifying the movement of material into the mixing chamber
in response to a signal from the detector.
SEE OR SEARCH THIS CLASS, SUBCLASS:
76.2 for condition responsive feed means in a rubber or
heavy plastic working apparatus.
132 for an apparatus including interrelated feed and
discharge means and a sensor to monitor and control its
operation.
141 for a mixing apparatus including a detector for sensing
weight, which may include a weight-responsive control.
Subclass:
151.2
Responsive to location of mixing chamber:
This subclass is indented under subclass 151.1. Subject
matter wherein the sensor is responsive to the position of
the mixing chamber.
Subclass:
152.1
Proportioning plural material components:
This subclass is indented under subclass 151.1. Subject
matter wherein the mixing chamber has feed means for
different materials, the means for initiating or modifying
movement of the material controlling at least one of the feed
means so as to control or maintain the ratio of the materials
admitted into the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 and 16+, for a mortar mixing method or mortar mixer type
apparatus involving proportioning of plural ingredients.
160.1 for specified feed means with mixing ratio control not
dependent on sensing means.
162.1 for specified feed means providing a fixed,
predetermined mixing ratio.
Subclass:
152.2
By volume or fixed quantity:
This subclass is indented under subclass 152.1. Subject
matter wherein (a) the variable condition sensed by the
detector is a volume or specific quantity of material fed by
one of the feed means and (b) the detector senses the
condition by monitoring the feed means.
(1) Note. The specific quantity of material to be fed may be
determined by the operation of a pump of known capacity for a
given time period.
Subclass:
152.3
By viscosity:
This subclass is indented under subclass 152.1. Subject
matter wherein the detector senses resistance to the movement
of an object through the material being mixed.
Subclass:
152.4
By electrical conductivity:
This subclass is indented under subclass 152.1. Subject
matter wherein the detector senses the electrical
conductivity of the material being mixed.
Subclass:
152.5
Responsive to viscosity:
This subclass is indented under subclass 151.1. Subject
matter wherein the detector senses resistance to the movement
of an object through the material being mixed.
Subclass:
152.6
Responsive to level of material in feeder:
This subclass is indented under subclass 151.1. Subject
matter wherein the detector senses the level of material in
the feed means.
Subclass:
153.1
Controlling level of material in mixing chamber:
This subclass is indented under subclass 151.1. Subject
matter wherein the detector senses the level of material in
the chamber.
SEE OR SEARCH CLASS:
222, Dispensing, subclass 56 and 64+ for feed means
controlled by the level of material in a receiving chamber.
Subclass:
153.2
Layering:
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means deposits the material in the
mixing chamber in layers and the material is subsequently
removed from the mixing chamber such that portions of each
layer are substantially simultaneously removed, thereby
mixing the material.
Subclass:
153.3
Endless conveyor:
This subclass is indented under subclass 150.1. Subject
matter including an endless conveyor for feeding the material
to the mixing chamber.
(1) Note. The endless conveyor may be, for example, an
endless belt or an endless chain carrying
material-transporting buckets.
SEE OR SEARCH THIS CLASS, SUBCLASS:
49 for an endless belt for discharging material from a
mortar mixer type apparatus.
133 for agitating apparatus having interrelated feed and
discharge means including an endless or screw conveyor.
SEE OR SEARCH CLASS:
198, Conveyors: Power Driven, appropriate subclasses for
endless belt conveyors.
Subclass:
154.1
Agitation of material in feeder or supply reservoir:
This subclass is indented under subclass 150.1. Subject
matter including means for agitating the material in the feed
means or in a supply container operatively associated with
the feed means.
(1) Note. The agitation may be for the purpose of moving the
material toward the chamber or merely for preventing
agglomeration of the material so as to maintain its free
flow. The recitation of a screw conveyor or other feed means
that inherently agitates material is sufficient to make
placement of a patent here proper. A trap chamber feeder is
not considered to inherently agitate material as required for
this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
290 for plural intercommunicating stationary mixing chambers
having a stirrer in each chamber.
Subclass:
154.2
By vibration:
This subclass is indented under subclass 154.1. Subject
matter wherein the means for agitating the material in the
feed means includes a vibrating element.
(1) Note. The vibrating element may be part of the feed
means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
31 for a mortar mixer having a vibrator element in the path
conducting material to a mixing chamber.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, subclass 533 for gravity
conveyors having means to affect flow of conveyed material by
vibration.
222, Dispensing, 196 for a container and means for vibrating
the container or portion thereof to assist gravity discharge
of material from the container.
Subclass:
155.1
Rotatable impeller:
This subclass is indented under subclass 154.1. Subject
matter wherein the agitator comprises a stirrer that agitates
the material by turning about an axis.
Subclass:
155.2
Having radially projecting pinlike element:
This subclass is indented under subclass 155.1. Subject
matter wherein the stirrer includes an element that (a) is
elongated in the radial direction of the shaft, (b) has a
substantially constant cross section perpendicular to its
longitudinal axis whose thickness is similar in all
directions, and (c) has a free radially outer end.
Subclass:
156.1
Screw conveyor:
This subclass is indented under subclass 155.1. Subject
matter wherein the rotatable impeller comprises structure
having a continuous helical blade which rotates about its
longitudinal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
35 38, and 50, for mortar mixer type apparatus having screw
conveyors for feeding or discharging material from a mixing
chamber.
76.3 for a screw conveyor for feeding material into a rubber
or heavy plastic working apparatus.
133 for mixing apparatus in which material is moved into and
out of a mixing chamber by a single screw conveyor.
Subclass:
156.2
Plural screw feeders:
This subclass is indented under subclass 156.1. Subject
matter wherein there is more than one rotatable impeller
structure having a continuous helical blade which rotates
about its longitudinal axis in the feed means.
(1) Note. There may be a single feed means having plural
screw feeders or plural feed means each having a screw
feeder.
Subclass:
157.1
Coaxial or unitary with stirrer:
This subclass is indented under subclass 156.1. Subject
matter wherein (a) the mixing chamber has a stirrer which
moves about an axis aligned with the axis of the rotatable
impeller or (b) the rotatable impeller extends into the
mixing chamber to also serve as a stirrer within the
chamber.
Subclass:
157.2
Screw stirrer:
This subclass is indented under subclass 157.1. Subject
matter wherein (a) the stirrer moving about the axis aligned
with the screw conveyor is a screw-type stirrer, or (b) the
screw conveyor extends into the mixing chamber to serve as
the stirrer.
Subclass:
157.3
Vertical axis:
This subclass is indented under subclass 157.2. Subject
matter wherein the axes of the screw conveyor and screw
stirrer are vertical during operation.
Subclass:
157.4
Vertical axis:
This subclass is indented under subclass 157.1. Subject
matter wherein the axes of the screw conveyor and stirrer are
vertical during operation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157.3 for a mixer including a vertical screw-type stirrer
and screw conveyor.
Subclass:
158.1
Axis parallel to stirrer in mixing chamber:
This subclass is indented under subclass 156.1. Subject
matter wherein the mixing chamber has a stirrer movable about
an axis which is parallel to and noncoaxial with the axis of
the screw conveyor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157.1 for mixing apparatus having a screw conveyor coaxial
or unitary with a stirrer.
Subclass:
158.2
Varying diameter screw or shank:
This subclass is indented under subclass 156.1. Subject
matter wherein the helical blade varies in diameter along its
length or the blade surrounds and is mounted on a central
shank that varies in diameter.
Subclass:
158.3
Discontinuous screw:
This subclass is indented under subclass 156.1. Subject
matter wherein the helical blade is interrupted along its
length.
Subclass:
158.4
Including upstream agitator:
This subclass is indented under subclass 156.1. Subject
matter including an agitator upstream of the helical blade in
the direction of flow of material in the feed means.
Subclass:
158.5
Stationary deflector:
This subclass is indented under subclass 154.1. Subject
matter wherein the means for agitating the material in the
feed means or supply container comprises a stationary
deflector configured and arranged to cause irregular flow of
material past the deflector.
Subclass:
159.1
Returning material to supply:
This subclass is indented under subclass 150.1. Subject
matter including means to cause or permit material fed toward
the mixing chamber to move away from the chamber in the feed
means before entering the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
136 for an apparatus including external means for
recirculating material from and to the mixing chamber.
Subclass:
160.1
Adjustable mixing ratio control:
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means includes variable means for
controlling the relative quantities of different materials
fed by the feed means to the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
8 and 16+, for a mortar mixing method or mortar mixer type
apparatus involving proportioning of plural ingredients.
152.1 for a similar device wherein the mixing ratio is
controlled by a condition sensor.
162.1 for means feeding materials to a mixing chamber in a
predetermined ratio that is not adjustable.
Subclass:
160.2
Including pump:
This subclass is indented under subclass 160.1. Subject
matter wherein the feed means includes a pump for moving or
conveying the material to the mixing chamber.
(1) Note. A "pump" includes a screw- or auger-type feed
means for purposes of this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
162.3 for a feed chamber of decreasing volume.
176.1 for a mixing apparatus including a pump that forces
material through a restriction to agitate it.
181.8 for plural feeders including a fluid pump.
182.2 for flow control means including a pump.
Subclass:
160.3
By variable pump:
This subclass is indented under subclass 160.2. Subject
matter wherein the variable means comprises means for varying
the speed, duration, or capacity of the pump.
Subclass:
160.4
Piston pump:
This subclass is indented under subclass 160.3. Subject
matter wherein the pump utilizes a piston to force material
out of a housing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
176.3 for a mixing apparatus comprising a piston pump
forcing material through a restriction.
Subclass:
160.5
By volume:
This subclass is indented under subclass 160.1. Subject
matter wherein the variable means includes means responsive
to a volume of material.
(1) Note. The volume of material must be measured directly;
e.g., by filling a container or a piston pump cylinder of
known volume.
SEE OR SEARCH THIS CLASS, SUBCLASS:
19 for mortar mixer type apparatus having means for
proportioning ingredients by volume.
152.2 for feed means including means for measuring the
volume of material fed.
Subclass:
162.1
Predetermined mixing ratio:
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means is designed to deliver
different materials to the mixing chamber in a fixed
proportional relationship.
SEE OR SEARCH THIS CLASS, SUBCLASS:
152.1 for a similar device wherein the mixing ratio is
regulated by a condition sensor.
160.1 for means feeding materials in a constant ratio, which
ratio can be varied or adjusted.
Subclass:
162.2
Rotatable feeder:
This subclass is indented under subclass 162.1. Subject
matter wherein the feed means includes at least one feed
means that rotates for feeding material to the mixing
chamber.
(1) Note. Endless conveyors are not considered rotatable
feed means. Rotatable feed means include screw conveyors,
rotatable trap chambers, etc.
Subclass:
162.3
Feed chamber of decreasing volume:
This subclass is indented under subclass 162.1. Subject
matter wherein the feed means has a feed chamber for feeding
material to the mixer and the feed chamber decreases in
volume during the feeding of material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.2 for a piston pump or other feed means having a
variable volume chamber.
Subclass:
162.4
Impinging jets:
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means includes a pair of inlets into
the mixing chamber constructed to direct material toward a
common point and wherein the material is introduced into the
chamber through the inlets with sufficient velocity to form
streams that collide at the common point and intermix.
(1) Note. Devices in which the energy of any streams formed
by mixing chamber inlet is substantially dissipated before
the streams collide are excluded.
SEE OR SEARCH CLASS:
422, Chemical Apparatus and Process Disinfecting,
Deodorizing, Preserving, or Sterilizing, subclass 133 and
135 for chemical reactors forming impinging jets.
Subclass:
162.5
Having clean-out rod:
This subclass is indented under subclass 162.4. Subject
matter including a body that reciprocates within the mixing
chamber to assist the discharge of the material from the
chamber.
Subclass:
163.1
By suction:
This subclass is indented under subclass 150.1. Subject
matter wherein the material is moved into the chamber under
the influence of negative pressure produced in the chamber.
(1) Note. This subclass does not require substantially the
entire volume of the mixing chamber to be exposed to negative
pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
139 for a mixing chamber, the entire contents of which is
exposed to negative pressure, in which the negative pressure
may serve to move material into the mixing chamber.
Subclass:
163.2
By venturi or jet pump type device:
This subclass is indented under subclass 163.1. Subject
matter including (a) a passage having a region of reduced
cross- sectional area connected to the mixing chamber and
constructed so that the flow of a fluid through the region
creates the suction, or (b) a small tube through which
material is directed into a larger tube with sufficient
velocity to produce the suction.
(1) Note. The passage may constitute a portion of the mixing
chamber, or a low pressure region of the passage may be
fluidly connected to the mixing chamber.
Subclass:
164.1
By stirrer:
This subclass is indented under subclass 163.1. Subject
matter wherein the suction is produced by movement of a
stirrer within the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
262 for a mixing apparatus including a pump creating a
reduced pressure to move material through a confined flow
path within a mixing chamber.
Subclass:
164.2
Conduit integral with stirrer:
This subclass is indented under subclass 164.1. Subject
matter wherein the stirrer is mounted for rotation about a
fixed axis and the material is fed by the suction to the
chamber through a conduit that is fixed to or part of the
stirrer so as to be substantially immovable with respect to
the stirrer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
169.1 for a rotatable stirrer through which material is fed
into the mixing chamber.
Subclass:
164.3
Detachably or adjustably mounted on drive shaft:
This subclass is indented under subclass 164.2. Subject
matter wherein the stirrer is mounted on and driven by a
rotatable drive shaft and the stirrer and at least a portion
of the conduit can be repositioned or are removably mounted
on the drive shaft.
Subclass:
164.4
Stationary deflector in mixing chamber:
This subclass is indented under subclass 164.3. Subject
matter having a fixed deflector in the mixing chamber for
providing additional agitation of the material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having stationary
agitating elements.
Subclass:
164.5
Outlet behind blade:
This subclass is indented under subclass 164.2. Subject
matter wherein the stirrer has a blade and the
material-conducting conduit discharges the material into a
zone to the rear of the blade.
Subclass:
164.6
Centrifugal type:
This subclass is indented under subclass 164.1. Subject
matter wherein the stirrer is rotatable, rotation of the
stirrer generating flow of material away from the axis of
rotation of the stirrer that creates the negative pressure in
the mixing chamber.
(1) Note. Excluded from this subclass are devices in which
all radial motion of fluid is incidental to the operation of
the device, that is, not producing the suction drawing
material into the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
263 for a centrifugal pump type mixer for circulating
material within a mixing chamber.
Subclass:
165.1
Material introduced so as to cause rotary motion in mixing
chamber (e.g., cyclonic):
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means is arranged relative to an
inner wall of the mixing chamber to cause a generally
circular or elliptical movement of the material within the
chamber.
Subclass:
165.2
Including deflector in chamber (deflector may be part of
chamber wall):
This subclass is indented under subclass 165.1. Subject
matter wherein the mixing chamber has a deflector therein
positioned to be contacted by either the material entering
the chamber or the material undergoing mixing within the
chamber.
(1) Note. The deflector may be part of the mixing chamber
wall and extends into the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having stationary
agitating elements.
Subclass:
165.3
Rotating stirrer in chamber:
This subclass is indented under subclass 165.1. Subject
matter wherein the mixing chamber has a rotatable member
therein for further implementing agitation.
(1) Note. The rotatable member may be driven by a power
source such as a motor or driven by means of the material
entering the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for a rotating stirrer in a stationary mixing chamber,
per se.
Subclass:
165.4
Feed means having a flow regulator (e.g., valve or pump):
This subclass is indented under subclass 165.1. Subject
matter wherein the feed means includes means (e.g., a valve
or pump) to control the flow of material into the mixing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
182.1 for means for controlling flow of material to a mixing
chamber.
Subclass:
165.5
Manifold in feed means:
This subclass is indented under subclass 165.1. Subject
matter wherein the means supplying the material has a
plurality of outlets into the mixing chamber, all of which
are connected to a common supply source.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173.2 178.2, and 181.6, for feed means having plural outlets
into a mixing chamber, all connected to the same source of
material. See the search notes in subclass 181.6 for further
locations of mixing apparatus having plural material feed
means or outlets.
Subclass:
166.1
Print washer type:
This subclass is indented under subclass 150.1. Subject
matter constructed for washing photos:graphic prints or the
like.
SEE OR SEARCH CLASS:
134, Cleaning and Liquid Contact With Solids, appropriate
subclasses for a print washer with a support for the work.
396, Photography, 564 for a photos:graphic fluid treating
vessel and means to move a film.
Subclass:
167.1
Liquid injector within mixing chamber:
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means includes a passage-forming
element projecting into the mixing chamber so as to admit
liquid material through the element into the chamber.
Subclass:
167.2
Injector is rotatable body having internal material passage
and peripheral outlet (e.g., slinger):
This subclass is indented under subclass 167.1. Subject
matter wherein the injector comprises a rotating member
having an internal chamber or channel through which the
material flows and having outlets in its periphery through
which material is discharged from the chamber or channel into
the mixing chamber.
(1) Note. A rotating hollow stirrer (i.e., a rotating body
agitating material by contact with the exterior surface of
the body) through which material is fed is not included in
this subclass. See the search notes below for the location of
such a device.
SEE OR SEARCH THIS CLASS, SUBCLASS:
169.1 for a rotatable stirrer having a material-supplying
passage therein.
Subclass:
168.1
Including rotating stirrer:
This subclass is indented under subclass 167.1. Subject
matter also including a rotatable stirrer in the mixing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for a rotating stirrer in a mixing chamber.
Subclass:
168.2
Driven by material feed:
This subclass is indented under subclass 168.1. Subject
matter wherein the stirrer is rotated by material fed to the
mixing chamber.
(1) Note. Only one of plural feeds need drive the stirrer.
Subclass:
169.1
Fed through stirrer or stirrer drive shaft:
This subclass is indented under subclass 168.1. Subject
matter wherein the passage-forming element is an integral
part of the stirrer.
(1) Note. A drive shaft integral with a stirrer is
considered a part of the stirrer.
(2) Note. Typical of patents in this subclass is a stirrer
having a drive shaft and having a passage in the shaft
through which liquid is fed into the mixing chamber.
(3) Note. Substantially all of the material that flows
through the passage-forming element must be from outside the
mixing chamber rather than from the agitated contents of the
mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164.2 for apparatus in which material is fed into a mixing
chamber through a stirrer or a conduit integral therewith by
suction generated by the stirrer.
Subclass:
169.2
Fed radially through side wall of shaft:
This subclass is indented under subclass 169.1. Subject
matter wherein the material is fed radially through a side
wall of a drive shaft of the stirrer.
Subclass:
170.1
Rotating mixing chamber:
This subclass is indented under subclass 169.1. Subject
matter wherein the mixing chamber is rotatable to effect
agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 and 220+, for rotating mixing chambers, per se.
Subclass:
170.2
Plural coaxial rotating shafts:
This subclass is indented under subclass 169.1. Subject
matter including a rotating shaft coaxial with the axis of
rotation of the stirrer.
(1) Note. The rotating shaft may or may not be the drive
shaft for an additional stirrer.
Subclass:
170.3
Passage through stirrer blade:
This subclass is indented under subclass 169.1. Subject
matter wherein the passage-forming element is a projection of
the stirrer having substantial radial extension from the axis
of rotation of the stirrer.
Subclass:
170.4
Stationary feed conduit received within rotating stirrer or
shaft:
This subclass is indented under subclass 169.1. Subject
matter wherein the feed means includes a stationary conduit
having a portion located inside the rotating stirrer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
175.1 and 175.3, for a liquid injector received in a moving
mixing chamber.
183.3 for a static material conveyor which may extend into a
rotating mixing chamber.
Subclass:
171.1
Including cooperating stationary element:
This subclass is indented under subclass 168.1. Subject
matter wherein the mixing chamber has an immovable element
therein which is in addition to the injector and which
cooperates with the rotatable stirrer to effect agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having stationary
agitating elements.
Subclass:
172.1
Plural injectors:
This subclass is indented under subclass 168.1. Subject
matter wherein there is more than one passage-forming element
in the mixing chamber.
(1) Note. A branched tube constitutes plural injectors,
while a single tube or nozzle having a plurality of
perforations without projecting hollow fluid conducting
members does not constitute plural injectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
173.1 for plural injectors in a mixing chamber not having a
rotatable stirrer.
181.6 for feed means having plural identical outlets opening
into a mixing chamber all of the outlets being connected to
the same source of material. See the search notes in subclass
181.6 for further locations of mixing apparatus having plural
material feed means or outlets.
Subclass:
172.2
Injector directs material onto stirrer:
This subclass is indented under subclass 168.1. Subject
matter wherein the tube or nozzle directs the material into a
region immediately adjacent to the stirrer.
Subclass:
173.1
Plural injectors:
This subclass is indented under subclass 167.1. Subject
matter wherein there is more than one passage-forming element
in the chamber.
(1) Note. A branched tube constitutes plural injectors,
while a single tube or nozzle having a plurality of
perforations without projecting hollow fluid conducting
members does not constitute plural injectors.
SEE OR SEARCH THIS CLASS, SUBCLASS:
172.1 for plural injectors in a mixing chamber having a
rotatable stirrer.
181.6 for feed means having plural identical outlets opening
into a mixing chamber, all of the outlets being connected to
the same source of material. See the search notes in subclass
181.6 for further locations of mixing apparatus having plural
material feed means or outlets.
Subclass:
173.2
Plural injectors for material from same source:
This subclass is indented under subclass 173.1. Subject
matter having plural passage-forming elements in the mixing
chamber for material from the same supply.
SEE OR SEARCH THIS CLASS, SUBCLASS:
165.5 178.2, and 181.6, for feed means having plural inlets
into a mixing chamber connected to a common material source.
See the search notes in subclass 181.6 for further locations
of mixing apparatus having plural material feed means or
outlets.
Subclass:
174.1
Deflector:
This subclass is indented under subclass 167.1. Subject
matter which also includes an element that is in the chamber
and stationary relative to the chamber or a support therefor
serving to divert portions of the material in the mixing
chamber so as to assist in the agitation.
(1) Note. The deflector need not act directly on fluid
introduced by the tube or nozzle or a flow induced entirely
by the introduction of material through the tube or nozzle,
but may act on any moving material in the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having stationary
agitating elements.
Subclass:
175.1
Rotating mixing chamber:
This subclass is indented under subclass 174.1. Subject
matter wherein the mixing chamber is rotatable about its axis
to assist in the agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
170.4 for a stationary feed conduit received within a
rotatable stirrer shaft.
175.3 for a stationary liquid injector located in a movable
mixing chamber.
183.3 for a stationary material conveyor feeding material to
a rotating mixing chamber.
213 and 220+, for a rotatable mixing chamber.
Subclass:
175.2
Injector directs material onto deflector:
This subclass is indented under subclass 174.1. Subject
matter wherein the passage-forming element directs the
material introduced through it onto the stationary element.
Subclass:
175.3
Moving mixing chamber:
This subclass is indented under subclass 167.1. Subject
matter wherein the mixing chamber moves to agitate the
material therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 208+, and 219+, for moving mixing chambers.
170.1 for a liquid injector in the form of a stirrer in a
rotating mixing chamber.
170.4 for a stationary feed conduit received within a
rotatable stirrer shaft.
175.1 for a liquid injector received in a rotating mixing
chamber.
180.1 for a rotating mixing chamber having plural feed
means.
183.3 for a static material conveyor which may extend into a
rotating mixing chamber.
Subclass:
176.1
Pump forces material through restriction (e.g., static
emulsifier):
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means is in the form of a pump for
forcing the material through a narrow restriction for the
purpose of mixing the material, particularly for the purpose
of emulsifying or homogenizing the material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.2 181.8, and 182.2, for a mixing chamber having a pump
for feeding material to it.
181.5 for a flow-through mixing chamber having a stationary
deflector for agitating the material.
336 and particularly 340, for mixing apparatus in which
material is divided into different portions by passage around
deflectors or through apertures therein and recombined for
the purpose of mixing or emulsifying the material.
SEE OR SEARCH CLASS:
138, Pipes and Tubular Conduits, 40 for a conduit having a
restriction that modifies the flow of fluid through the
conduit.
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, Stabilizing, Breaking, or
Inhibiting, appropriate subclasses for subject matter
relating to: colloid systems (such as sols*, emulsions,
dispersions, foams, aerosols, smokes, gels, or pastes) or
wetting agents (such as leveling, penetrating, or spreading);
subcombination compositions of colloid systems containing at
least an agent specialized and designed for or peculiar to
use in making or stabilizing colloid systems; compositions
and subcombination compositions specialized and designed for
or peculiar to use in breaking (resolving) or inhibiting
colloid systems; processes of making the compositions or
systems of the class; processes of breaking (resolving) or
inhibiting colloid systems; in each instance, when
generically claimed or when there is no hierarchically
superior provision in the USPC for the specifically claimed
art.
Subclass:
176.2
Variable restriction (may be manual or pressure responsive):
This subclass is indented under subclass 176.1. Subject
matter wherein the size of the restriction can be readily
adjusted.
(1) Note. The size of the narrow restriction may be changed
by either a mechanical means or by fluid pressure acting on
the walls of the restriction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
182.1 for means for controlling the flow in a feed means.
Subclass:
176.3
Piston pump:
This subclass is indented under subclass 176.1. Subject
matter wherein the pump includes a movable piston that forces
the material to move.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.4 for a mixing apparatus having a piston pump for
feeding material to a mixing chamber.
Subclass:
176.4
Adjustable pressure regulator:
This subclass is indented under subclass 176.3. Subject
matter wherein the narrow restriction is within a chamber and
the pressure within the chamber may be changed by adjustable
means for maintaining a desired pressure (e.g., a regulator
valve).
Subclass:
177.1
Plural related feeders having separate outlets to mixing
chamber:
This subclass is indented under subclass 150.1. Subject
matter including a plurality of feed means emptying into the
mixing chamber through separate outlets and being in a
particular relation to each other or the mixing chamber.
(1) Note. The mixing chamber that the materials enter must
be a chamber in which mixing of the type proper for Class 366
occurs.
SEE OR SEARCH THIS CLASS, SUBCLASS:
33 for plural feed means in a mortar mixer type apparatus.
107 for plural feed means for introducing agitating gas into
a mixing chamber.
134 for plural feed or discharge means in a mixing chamber
wherein the feed and discharge means are interrelated.
152.1 160.1+, 162.1+, and 162.4+, for mixing apparatus
including means for feeding plural materials or material
charges into a mixing chamber.
172.1 and 173.1+, for plural injectors in a mixing chamber.
Subclass:
178.1
Concentric:
This subclass is indented under subclass 177.1. Subject
matter wherein at least two elongated feed means have a
common axis and are arranged one inside the other.
Subclass:
178.2
Feed means has plural identical outlets:
This subclass is indented under subclass 178.1. Subject
matter wherein one of the feed means has a plurality of
outlets into the mixing chamber that are substantially the
same size and shape.
SEE OR SEARCH THIS CLASS, SUBCLASS:
165.5 and 173.2, for other feed means having a plurality of
outlets.
181.6 for nonconcentric feed means having plural identical
outlets opening into a mixing chamber, all of the outlets
being connected to the same source of material. See the
search notes in subclass 181.6 for further locations of
mixing apparatus having plural material feed means or
outlets.
Subclass:
178.3
Inner feeder passes through wall of outer feeder and extends
along common axis at the wall:
This subclass is indented under subclass 178.1. Subject
matter in which (a) an inner one of the feed means extends
through a wall of an outer one of the feed means forming an
intersection between them and (b) the axis of the inner feed
means extends along the common axis of the feed means at the
intersection.
Subclass:
179.1
Intermittent feed:
This subclass is indented under subclass 177.1. Subject
matter wherein at least one of the feed means supplies
quantities of material to the chamber in recurrent
interrupted sequence.
(1) Note. Means to intermittently operate flow control means
for the material to repeat a material-supplying operation
without operator intervention is required for placement in
this subclass.
Subclass:
180.1
Rotating mixing chamber:
This subclass is indented under subclass 177.1. Subject
matter wherein the mixing chamber is rotatable.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 and 220+, for a rotatable mixing chamber.
Subclass:
181.1
Including chute or hopper with gravity discharge to mixing
chamber:
This subclass is indented under subclass 177.1. Subject
matter wherein the feed means includes a chute or hopper that
supplies material solely by gravity.
(1) Note. A hopper is a funnel-shaped container usually, but
not necessarily, used for dispensing fluent solids. A chute
is an open-topped channel or conduit for guiding material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
41 for a movable charge hopper or chute for a mortar mixer.
68 for a movable chute for a mortar mixer.
SEE OR SEARCH CLASS:
193, Conveyors, Chutes, Skids, Guides, and Ways, for a chute,
per se.
Subclass:
181.2
Including distributor:
This subclass is indented under subclass 181.1. Subject
matter including means for distributing material over a
region of the mixing chamber as it is being introduced into
the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
183.2 for an obstruction or distributing device in a static
conveyor.
Subclass:
181.3
Including gate, valve, or closure:
This subclass is indented under subclass 181.1. Subject
matter including a valve, gate, or closure for controlling
release of material from the chute or hopper.
SEE OR SEARCH THIS CLASS, SUBCLASS:
182.3 for a container having a valved outlet.
192 for a valve or gate in the outlet of a mixing chamber.
Subclass:
181.4
Rotating stirrer and cooperating stationary element:
This subclass is indented under subclass 177.1. Subject
matter including a rotating stirrer in the mixing chamber and
a stationary deflector cooperating therewith to agitate the
material in the chamber.
Subclass:
181.5
Stationary deflecting element in flow-through mixing
chamber:
This subclass is indented under subclass 177.1. Subject
matter including an obstacle in the mixing chamber past which
the material flows and which deflects or changes the motion
of the material to promote mixing of the material.
(1) Note. To be placed in this subclass, the obstacle must
be an element other than the mixing chamber wall, even if
collision of material with the wall is responsible for
agitating the material.
(2) Note. An obstacle agitating only one of a plurality of
materials fed to the mixing chamber before combination with
other materials is not considered to be within the mixing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having stationary
agitating elements.
Subclass:
181.6
Feed means has plural identical outlets:
This subclass is indented under subclass 177.1. Subject
matter wherein a feed means has a plurality of outlets
opening into the mixing chamber which are substantially the
same size and shape.
SEE OR SEARCH THIS CLASS, SUBCLASS:
3 and 10+, for mortar mixing apparatus in which fluid is
introduced into a mixing region of a conveying conduit
through a plurality of substantially identical inlets.
165.5 and 173.2, for feed means having plural outlets into a
mixing chamber from the same source of material.
172.1 and 173.1+, for a mixing chamber having plural liquid
injectors.
178.2 for concentric feed means, one of which has a
plurality of identical outlet openings into a mixing chamber
Subclass:
181.7
Feed to narrow space between stirrer and chamber wall:
This subclass is indented under subclass 177.1. Subject
matter including a rotatable stirrer in the mixing chamber
defining a space of relatively small radial dimension between
the periphery of the stirrer and the wall of the mixing
chamber and wherein one of the feed means introduces material
directly into the space.
SEE OR SEARCH THIS CLASS, SUBCLASS:
305 for similar apparatus wherein the stirrer is spaced a
small distance from a cooperating stationary element in the
mixing chamber.
Subclass:
181.8
Fluid pump:
This subclass is indented under subclass 177.1. Subject
matter wherein one of the feed means is a device that acts on
fluid to force it to move along a path to the mixing
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.2 176.1+, and 182.2, for feed means including a pump.
Subclass:
182.1
Including specific structure for controlling flow through the
feed means:
This subclass is indented under subclass 150.1. Subject
matter including means to start, stop, or regulate the flow
of material in the feed means.
(1) Note. The mere disclosure of a valve or pump is not
sufficient for placement of a patent in this subclass. There
must be a disclosure of valve details, a valve operator
mechanism, pump feed rate adjustment means, or other feature
directly related to adjustment or control of material flow
rate.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.1 through 160.5, for apparatus including mixing ratio
control means.
162.5 for apparatus in which the flow of jets of material is
controlled by a reciprocating cleanout rod.
165.4 for feed means including a flow regulator in a mixing
apparatus in which material has rotary motion.
176.2 for a variable restriction which agitates or
emulsifies material flowing through it.
Subclass:
182.2
Including pump:
This subclass is indented under subclass 182.1. Subject
matter wherein the feed means includes a pump that directly
forces material into the mixing chamber.
(1) Note. A "pump" includes a screw- or auger-type feed
means for purposes of this subclass.
SEE OR SEARCH THIS CLASS, SUBCLASS:
160.2 176.1+, and 181.8, for feed means including a pump.
Subclass:
182.3
Including feed container having valved outlet:
This subclass is indented under subclass 182.1. Subject
matter wherein the feed means includes a feed chamber for
holding a volume of material, and the means to start, stop,
or regulate the flow of material includes a valve in an
outlet of the feed chamber to regulate flow from the feed
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181.3 for a chute or hopper having a gate, valve, or closure
in an outlet thereof.
192 for a valve or gate in the outlet of a mixing chamber.
Subclass:
182.4
Including valve in feed conduit:
This subclass is indented under subclass 182.1. Subject
matter wherein the feed means includes a tubular conduit, and
the means to start, stop, or regulate the flow of material to
the mixing chamber includes a valve.
Subclass:
183.1
Static conveyor with gravity discharge to mixing chamber:
This subclass is indented under subclass 150.1. Subject
matter wherein the feed means includes a fixed structure
which conducts the material solely by gravity to the mixing
chamber.
(1) Note. The feed structure may be a chute, hopper, funnel,
etc. The material must be fed solely by gravity through the
static structure. The structure must be stationary during
feeding.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181.1 for plural feed means including a static conveyor.
Subclass:
183.2
Obstruction or distributing means in outlet (e.g., screen):
This subclass is indented under subclass 183.1. Subject
matter including stationary flow-modifying means in the
outlet of the static conveyor past which material must flow
to enter the mixing chamber.
(1) Note. The flow-modifying means may be, for example, a
guide to enhance distribution of material throughout the
mixing chamber or a screen or filter for breaking up or
preventing entry of lumps of material or foreign matter into
the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
181.2 for a chute or hopper having a stationary distributor
for material escaping therefrom into the mixing chamber.
Subclass:
183.3
To rotatable mixing chamber:
This subclass is indented under subclass 183.1. Subject
matter wherein the mixing chamber is rotatable to agitate the
material therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
170.4 for a stationary feed conduit received within a
rotatable stirrer shaft.
175.1 and 175.3, for a liquid injector received in a moving
mixing chamber.
213 and 220+, for a rotatable mixing chamber.
Subclass:
183.4
Closed connection between conveyor and mixing chamber (e.g.,
sealed joint):
This subclass is indented under subclass 183.3. Subject
matter including means for closing off a space between the
fixed material-conducting structure and a wall forming an
integral portion of the rotatable mixing chamber so as to
prevent escape of material between the material-conducting
structure and the wall.
SEE OR SEARCH CLASS:
277, Seal for a Joint or Juncture, 345 for a seal between
relatively movable parts (i.e., a dynamic seal).
Subclass:
184
WITH SPECIFIED DISCHARGE MEANS:
This subclass is indented under the class definition.
Apparatus and corresponding methods including a particularly
described means for conveying or releasing material from the
mixing chamber.
(1) Note. Mere recitation of an opening, outlet port, or
discharge conduit for the material will not be considered
specified discharge means. However, any of the following
claimed particulars will be considered as specified means for
this or an indented subclass: (a) Means for applying pressure
on the material to move it out of the chamber (e.g., pump
compressed air). (b) Conveyor means (e.g., belt, chute,
screw, spout). (c) Discharge control means (e.g., valve,
fate). (d) Means for tilting or permitting tilting of the
chamber on its support for discharge of the contents.
SEE OR SEARCH THIS CLASS, SUBCLASS:
42 for dynamic delivery means to a mortar mixer.
162.5 for an impinging jet mixing device in which the
mixture is discharged from a mixing chamber by a cleanout rod
passing through the chamber.
SEE OR SEARCH CLASS:
239, Fluid Sprinkling, Spraying, and Diffusing, 142 for a
fluid sprinkling or spraying device with agitation of its
supply.
Subclass:
185
By tilting mixing chamber:
This subclass is indented under subclass 184. Subject matter
wherein the mixing chamber is pivotable relative to its
support so as to permit material to flow therefrom under the
force of gravity.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for mortar chamber tiltable for delivery.
SEE OR SEARCH CLASS:
414, Material or Article Handling, subclass 405, 425, 697+,
and others for material containers which may be tilted.
Subclass:
186
By endless belt or screw conveyor:
This subclass is indented under subclass 184. Subject matter
wherein the discharge means includes an endless belt or screw
conveyor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
1 for endless belt or screw conveyor to feed or discharge to
a mortar mixer.
SEE OR SEARCH CLASS:
198, Conveyors: Power-Driven, 804 for an endless belt
conveyor, per se, and subclasses 657+ for a screw conveyor,
per se.
Subclass:
187
Rotatable or oscillatable mixing chamber:
This subclass is indented under subclass 184. Subject matter
wherein the mixing chamber is rotatable in one direction
only, or alternatively rotatable about its axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
219 for a rotatable or oscillatable mixing chamber.
Subclass:
188
Closure-type discharge:
This subclass is indented under subclass 187. Subject matter
including an opening in the wall of the mixing chamber and a
movable or removable cover for the opening for selectively
permitting the material to flow from the chamber under the
force of gravity.
Subclass:
189
Batch discharge:
This subclass is indented under subclass 184. Subject matter
wherein a predetermined quantity of material is removed or
release from the chamber by the discharge means.
SEE OR SEARCH THIS CLASS, SUBCLASS:
162.5 for an impinging jet mixer having a relatively movable
clean-out rod for discharging material from the mixing
chamber.
Subclass:
190
By pump within mixing chamber:
This subclass is indented under subclass 184. Subject matter
wherein egress of the material from the mixing chamber is
effected by an agitating element which is in contact with the
material in cooperation with a confined flow path within the
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
191 for a pump situated exteriorly of the mixing chamber to
effect the discharge of material therefrom by creating a
pressure variation in the chamber.
Subclass:
191
By suction or compressed air:
This subclass is indented under subclass 184. Subject matter
wherein the material is caused to egress the chamber by means
producing a partial vacuum at the discharge opening of the
mixing chamber or increasing the pressure of the air on the
surface of the material in the mixing chamber.
Subclass:
192
Valve or gate:
This subclass is indented under subclass 184. Subject matter
wherein the flow of the material from the mixing chamber is
regulated by a movable means that opens, shuts, or partially
blocks a discharge opening in or passageway from the
chamber.
Subclass:
193
Sliding gate:
This subclass is indented under subclass 192. Subject matter
wherein the movable means is a closure which is rectilinearly
reciprocable in a path transverse to the opening or
passageway.
Subclass:
194
With rotatable or oscillatable stirrer:
This subclass is indented under subclass 184. Subject matter
including a stirrer within the mixing chamber which is
rotatable about its axis in one direction, or alternatively
in opposite directions.
Subclass:
195
Interrelated with discharge means:
This subclass is indented under subclass 194. Subject matter
wherein the stirrer cooperates with the specified discharge
means to effect or regulate the flow of material from the
mixing chamber.
Subclass:
196
Discharge effected by stirrer:
This subclass is indented under subclass 194. Subject matter
wherein the stirrer, in its agitating movement, acts directly
on the material to cause its egress from the mixing chamber.
Subclass:
197
MIXING CHAMBER REMOVABLE FROM STIRRER AND SUPPORT:
This subclass is indented under the class definition.
Apparatus and corresponding methods including means to hold a
mixing chamber and a stirrer during agitation wherein the
chamber can be removed from the holder and the stirrer.
(1) Note. If the chamber and stirrer are removed as a unit
and the stirrer is not removable, see subclass 219 below.
(2) Note. For proper placement of patents in this and
indented subclasses, the chamber does not have to be
claimed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129 for an operator supported chamber and stirrer.
219 for a chamber movable relative to a support which may
include a stirrer.
Subclass:
198
Plural supports:
This subclass is indented under subclass 197. Subject matter
having more than one support.
Subclass:
199
Removable power drive means:
This subclass is indented under subclass 197. Subject matter
including a power source for moving the stirrer and/or the
support which can be remove.
Subclass:
200
Support rotatable only:
This subclass is indented under subclass 197. Subject matter
wherein the support turns in one direction about a fixed axis
during agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
213 for a support rotatable in one direction only in which a
chamber is removable from the support.
Subclass:
201
Adjustable stirrer:
This subclass is indented under subclass 200. Subject matter
wherein the stirrer is adjustable relative to the chamber and
the adjustment is independent of the agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
207 for any adjustable stirrer and/or mixing chamber.
254 for an adjustable stirrer mounted in a chamber closure.
285 for an adjustable stirrer and a fixed mixing chamber.
Subclass:
202
Support oscillatory only:
This subclass is indented under subclass 197. Subject matter
wherein the support rotates alternately in opposite
directions about an axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
210 for an oscillatory support where the mixing chamber is
removable.
Subclass:
203
Support rectilinearly reciprocable only:
This subclass is indented under subclass 197. Subject matter
wherein the support moves back and forth in a straight line
and in the same path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
212 for rectilinearly reciprocable support without a
stirrer.
Subclass:
204
Mixing chamber mounted within container:
This subclass is indented under subclass 197. Subject matter
wherein the mixing chamber is supported by a receptacle and
is on the inside of the receptacle.
(1) Note. The use of the container is for cooling of the
chamber but not limited to such and the patents are placed
here, not in subclass 149.
SEE OR SEARCH THIS CLASS, SUBCLASS:
149 for a jacket over a mixing chamber for cooling it.
Subclass:
205
Stirrer mounted through mixing chamber bottom wall:
This subclass is indented under subclass 197. Subject matter
wherein the stirrer is removable from the bottom of wall of
the mixing chamber.
Subclass:
206
With motor control:
This subclass is indented under subclass 197. Subject matter
including means for governing the starting, stopping
direction of motion, acceleration, speed retardation, etc.,
of a motor.
Subclass:
207
Adjustable:
This subclass is indented under subclass 197. Subject matter
wherein the stirrer and or the mixing chamber are adjustable
relative to each other.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for an adjustable stirrer, and see search notes.
Subclass:
208
BY MOVEMENT OF SUPPORT FOR REMOVABLE MIXING CHAMBER:
This subclass is indented under the class definition.
Apparatus and corresponding methods including means to hold a
mixing chamber and means to permit the holder to move during
agitation, wherein the chamber is removable from the holder.
(1) Note. For proper placement of patents in this and
indented subclasses, the chamber does not have to be
claimed.
(2) Note. The mixing chamber support has the same movement
with or without the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 for a movable support for a removable mixing chamber and
a stirrer.
219 for a mixing chamber movable relative to a fixed
support.
Subclass:
209
Mixing chamber secured to support:
This subclass is indented under subclass 208. Subject matter
including means to fasten the mixing chamber to the surface.
Subclass:
210
Support oscillatory only:
This subclass is indented under subclass 209. Subject matter
wherein the support rotates alternately in opposite
directions about an axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
202 for an oscillatory support and stirrer.
Subclass:
211
Motor driven:
This subclass is indented under subclass 210. Subject matter
wherein the support is moved by a power source which converts
one form of energy to another form of energy.
Subclass:
212
Support rectilinearly reciprocable only:
This subclass is indented under subclass 209. Subject matter
wherein the support moves back and forth in a straight line
and in the same path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
203 for rectilinearly reciprocable support and a stirrer.
Subclass:
213
Support rotatable only:
This subclass is indented under subclass 209. Subject matter
wherein the support turns in but one direction about an axis
during agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54 for a mortar-type mixer having a rotatable mixing
chamber.
170.1 175.1, 180.1, and 183.3, for a rotatable mixing chamber
having specified feed means.
200 for a rotatable support and stirrer means.
220 for a mixing chamber rotatable relative to a stationary
support.
Subclass:
214
And means to clamp plural mixing chambers:
This subclass is indented under subclass 213. Subject matter
including means to secure more than one mixing chamber to
said support.
(1) Note. Also included are plural means to support plural
mixing chambers.
Subclass:
215
Support pivotally mounted by plural linkage:
This subclass is indented under subclass 209. Subject matter
wherein the support is suspended by more than one rod, strap,
etc., which are movable about their own axis and cause the
support to move in an accurate path.
Subclass:
216
Support oscillatory with additional motion:
This subclass is indented under subclass 209. Subject matter
wherein the support rotates alternately in opposite
directions about an axis and also moves in another direction
during agitation.
(1) Note. The second motion can be oscillatory,
rectilinearly, etc.
Subclass:
217
Support rotates about plural axes:
This subclass is indented under subclass 209. Subject matter
wherein the support turns in but one direction about an axis
and also turns in but one direction about another axis where
the axes are at an angle to each other.
Subclass:
218
Mixing chamber conveyed by support during agitation:
This subclass is indented under subclass 208. Subject matter
wherein the mixing chamber is moved along or with a device
which supports it and causes agitation.
Subclass:
219
BY MOVEMENT OF MIXING CHAMBER RELATIVE TO STATIONARY
SUPPORT:
This subclass is indented under the class definition.
Apparatus and corresponding methods including a chamber and
means to support the chamber against the force of gravity
while allowing the chamber to move with respect to support
during agitation the means to support the chamber being fixed
with respect to a surface that does not move.
SEE OR SEARCH THIS CLASS, SUBCLASS:
129 for a chamber support by an operator during agitation.
Subclass:
220
Mixing chamber rotatable only:
This subclass is indented under subclass 219. Subject matter
wherein the chamber revolves about a fixed axis in one
direction only during agitating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
54 for a mortar-type mixer having a rotatable mixing
chamber.
170.1 175.1, 180.1, and 183.3, for a rotatable mixing chamber
having specified feed means.
213 for a removable mixing chamber mounted on a rotatable
support.
237 for an oscillating chamber.
Subclass:
221
With scraper:
This subclass is indented under subclass 220. Subject matter
wherein an element having an edge, flaccid surface, etc.,
which is in contact with or in close proximity to the chamber
wall causes material to be moved away from the wall.
SEE OR SEARCH THIS CLASS, SUBCLASS:
309 for a scraper within a stationary chamber.
Subclass:
222
Interrelated stirrer and mixing chamber drive:
This subclass is indented under subclass 220. Subject matter
having means to move the chamber and also move a stirrer.
Subclass:
223
Effecting counter rotation:
This subclass is indented under subclass 222. Subject matter
wherein the chamber moves in one direction and the stirrer in
the opposite.
Subclass:
224
With rotatable stirrer:
This subclass is indented under subclass 220. Subject matter
including a stirrer that turns in but one direction about an
axis.
Subclass:
225
With deflector:
This subclass is indented under subclass 220. Subject matter
including a device which is secured within and in fixed
relation to the mixing chamber or a stationary element in the
mixing chamber and serving to divert portions of the material
in the mixing chamber so as to assist in the agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
221 for a scraper which can act as a deflector.
Subclass:
226
Foraminous type:
This subclass is indented under subclass 225. Subject matter
wherein the element is porous.
Subclass:
227
Helical type:
This subclass is indented under subclass 225. Subject matter
wherein the deflector is an elongated strip twisted in a
spiral shape about the axis of rotation of the chamber, or a
segment of such a spirally shape strip.
SEE OR SEARCH THIS CLASS, SUBCLASS:
310 for a helical-type scraper in a stationary mixing
chamber.
320 for a helical ribbon stirrer in a stationary mixing
chamber.
338 for a deflector having curved surfaces and located in a
stationary flow-through mixing chamber.
339 for such a deflector in the form of a helical ribbon.
Subclass:
228
Attached directly to chamber wall:
This subclass is indented under subclass 225. Subject matter
wherein the deflector is secured in direct contact with the
chamber wall.
Subclass:
229
Additional deflector on support in chamber:
This subclass is indented under subclass 228. Subject matter
having a deflector which is not directly attached to the
chamber wall.
Subclass:
230
Deflector stationary:
This subclass is indented under subclass 225. Subject matter
wherein the deflector does not move during agitation.
(1) Note. The mixing chamber rotates but the deflector does
not moving during agitation.
Subclass:
231
Suspended within chamber:
This subclass is indented under subclass 230. Subject matter
wherein the deflect is supported from above the chamber.
Subclass:
232
Mixing chamber supported by shaft at one end only:
This subclass is indented under subclass 220. Subject matter
wherein the mixing chamber has an axle from one and only
which permits it to rotate.
(1) Note. The mixing chamber may be supported at the end
opposite the shaft by roller, guides, etc.
SEE OR SEARCH THIS CLASS, SUBCLASS:
233 for a mixing chamber supported by rollers.
Subclass:
233
Roller or suspended support for mixing chamber:
This subclass is indented under subclass 220. Subject matter
wherein the mixing chamber moves relative to rotating
cylinders or wheels which underlie the chamber during
rotating, or hangs by a support from above so as to allow
relative movement of the chamber.
Subclass:
234
Foraminous mixing chamber:
This subclass is indented under subclass 220. Subject matter
wherein at least part of the mixing chamber is porous.
Subclass:
235
Plural mixing chambers:
This subclass is indented under subclass 220. Subject matter
wherein there is more than one mixing chamber.
Subclass:
236
Rectangular mixing chamber:
This subclass is indented under subclass 220. Subject matter
wherein the mixing chamber has four sides and four right
angles.
Subclass:
237
Mixing chamber oscillating only:
This subclass is indented under subclass 219. Subject matter
wherein the chamber is rotatable, reciprocated about a fixed
axis and there is not other motion.
Subclass:
238
With stirrer:
This subclass is indented under subclass 237. Subject matter
including a stirrer to agitate material.
Subclass:
239
Mixing chamber rocking only:
This subclass is indented under subclass 219. Subject matter
wherein the chamber is mounted on a rocker which allows the
chamber to move in a back and forth curved path and there is
no other motion.
Subclass:
240
Mixing chamber rectilinearly reciprocating only:
This subclass is indented under subclass 219. Subject matter
wherein the chamber is moved in alternate directions in a
straight line and there is no other motion.
Subclass:
241
STIRRER WITHIN STATIONARY MIXING CHAMBER:
This subclass is indented under the class definition.
Apparatus and corresponding methods including a mixing
chamber which is in fixed position during agitation and a
stirrer within the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 for a stationary mixing chamber that is removable from a
stirrer and support.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, 217 for a drinking
vessel and material packaged therein with a space provided
for the addition of a liquid to be mixed with the material.
Subclass:
242
Mounted in removable mixing chamber closure:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer is mounted in an entirely supported by a
closure that is removable from the chamber.
Subclass:
243
Oscillatory stirrer:
This subclass is indented under subclass 242. Subject matter
wherein the stirrer is rotatable alternately in opposite
directions about an axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
276 for an oscillatory stirrer in a fixed mixing chamber.
Subclass:
244
Rotatable stirrer:
This subclass is indented under subclass 242. Subject matter
wherein the stirrer turns in one direction about an axis.
Subclass:
245
Axis fixed:
This subclass is indented under subclass 244. Subject matter
wherein the axis of the stirrer turns, but is stationary with
respect to its longitudinal movement.
Subclass:
246
Coincident axes:
This subclass is indented under subclass 245. Subject matter
wherein the stirrers have a congruent axis.
Subclass:
247
Single stirrer:
This subclass is indented under subclass 245. Subject matter
wherein there is only one stirrer.
Subclass:
248
Bent bar:
This subclass is indented under subclass 247. Subject matter
wherein the stirrer is an integral bar or rod that is of
curved or crooked shape to produce agitation.
Subclass:
249
Motor driven:
This subclass is indented under subclass 247. Subject matter
wherein the rotating stirrer is moved by a power source which
converts one form of energy into another form of energy.
Subclass:
250
Fluid motor:
This subclass is indented under subclass 249. Subject matter
wherein the power source is rotated by a fluid means.
(1) Note. The fluid may enter into and become part of the
material to be mixed or the fluid may be external of the
mixed material.
Subclass:
251
Electric motor:
This subclass is indented under subclass 249. Subject matter
wherein the power source is rotated by an electric current.
Subclass:
252
Gear driven:
This subclass is indented under subclass 247. Subject matter
wherein the rotatable stirrer is driven by a gear or gearing
arrangement.
Subclass:
253
Having cooperating stationary element:
This subclass is indented under subclass 252. Subject matter
wherein the mixing chamber has an immovable element therein
which cooperates with the rotatable stirrer to effect
agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
230 for a stationary deflector and a rotatable chamber.
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having a stationary
agitating element.
Subclass:
254
Adjustable stirrer or stirrer element:
This subclass is indented under subclass 252. Subject matter
wherein, prior to agitation, (1) the position of the stirrer
relative to the chamber may be varied, or (2) the position of
an element of the stirrer may be varied relative to the
position of another element of the stirrer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for an adjustable stirrer and a mixing chamber removable
from a support.
285 for an adjustable rotatable stirrer not mounted in a
removable chamber closure.
326.1 for an adjustable element of a rotatable stirrer not
mounted in a removable chamber closure.
Subclass:
255
Translatable stirrer:
This subclass is indented under subclass 242. Subject matter
wherein all parts of the stirrer move with the same
velocity.
Subclass:
256
Rectilinearly reciprocable only:
This subclass is indented under subclass 255. Subject matter
wherein the stirrer is mounted for movement only in alternate
directions along a straight line in the mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
255 for stirrers having additional movements.
Subclass:
257
Plural stirrers:
This subclass is indented under subclass 256. Subject matter
wherein there is more than one stirrer.
Subclass:
258
With rotary input drive:
This subclass is indented under subclass 256. Subject matter
wherein the movement of the stirrer is produced by a rotating
element or by revolution of a crank, the motion of the
rotating element or crank being converted to straight line
movement in alternate directions.
Subclass:
259
Actuated by pivoted lever:
This subclass is indented under subclass 256. Subject matter
wherein the movement of the stirrer is produced by an element
which moves about a point in such a manner so as to move the
stirrer in a straight line.
Subclass:
260
Spring return:
This subclass is indented under subclass 256. Subject matter
wherein an elastic body is employed to return the stirrer
from one direction of reciprocable movement.
Subclass:
261
With means to move stirrer and support:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer has a support means and additional means
are provided for moving the support and stirrer in a
direction transverse to the longitudinal axis of the
stirrer.
Subclass:
262
Pump type:
This subclass is indented under subclass 241. Subject matter
wherein a confined flow path within the mixing chamber forms
part of the course through which material is caused to pass
by means of a pump within the chamber which (a) directly
forces or induces material through the flow path, or (b)
causes the material to move to and fro in said path, thereby
producing turbulence and agitation of the material in the
chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164.1 for a stirrer arranged to create suction in a mixing
chamber for drawing material into the chamber.
272 for a gear-type pump which moves material through a
mixing chamber while simultaneously agitating the material.
Subclass:
263
Centrifugal:
This subclass is indented under subclass 262. Subject matter
wherein the pump is of the centrifugal force type, e.g.,
radial and tangential flow.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164.6 for a stirrer producing suction in the manner of a
centrifugal pump for drawing material into a mixing chamber.
Subclass:
264
Impeller with outer stationary ring:
This subclass is indented under subclass 263. Subject matter
wherein the centrifugal pump comprises a rotating impeller
and an outer stationary ring located in the same general
diametrical plane with the impeller.
Subclass:
265
Impeller only:
This subclass is indented under subclass 263. Subject matter
wherein the centrifugal pump comprises a rotating impeller
only. e.g., cooperates with no other element.
Subclass:
266
Screw:
This subclass is indented under subclass 262. Subject matter
wherein the pump is a continuous helical ribbon rotatable
about its longitudinal axis to produce the pumping action.
Subclass:
267
Piston:
This subclass is indented under subclass 262. Subject matter
wherein the pump is a piston that causes material to move.
Subclass:
268
Plural:
This subclass is indented under subclass 267. Subject matter
wherein there are two or more pistons for moving the
material.
Subclass:
269
Inlet and outlet at same end of flow path:
This subclass is indented under subclass 267. Subject matter
wherein the inlet and outlet to the flow path is at the same
and of the flow path.
Subclass:
270
Propeller blade type:
This subclass is indented under subclass 262. Subject matter
wherein the pump has one or more blades which when rotated
about a central shaft produces movement of the material in a
direction parallel to the axis of rotation.
Subclass:
271
Endless conveyor with paddles:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer is attached to an endless conveyor for
agitating the material.
Subclass:
272
Gear-type stirrer:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer comprises at least two members having
meshing teeth, at least one of said members being rotatable
and such rotation causing agitation of material in the
chamber.
Subclass:
273
Magnetic stirrer:
This subclass is indented under subclass 241. Subject matter
wherein the magnetic flux device is within the means to hold
the mixing chamber.
Subclass:
274
Actuating means in base support:
This subclass is indented under subclass 273. Subject matter
wherein the magnetic flux device is within the means to hold
the mixing chamber.
Subclass:
275
Flexible diaphragm:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer is a resilient diaphragm within the
chamber or chamber walls which on movement agitates the
material within the chamber.
Subclass:
276
Oscillatory stirrer:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer is rotating alternately in opposite
directions about an axis.
Subclass:
277
With additional motion:
This subclass is indented under subclass 276. Subject matter
wherein the stirrer is moved in another direction e.g.,
rectilinearly rotatable, etc.
Subclass:
278
Including rotatable input drive:
This subclass is indented under subclass 276. Subject matter
wherein the oscillating motion of the stirrer is caused by a
rotatable means.
(1) Note. The rotatable means may be a hand crank, crank
wheel, or motor.
Subclass:
279
Rotatable stirrer:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer rotates about a fixed axis in one
direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
157.1 158.1, 164.1+, 165.3, 168.1+, 181.4, and 181.7, for a
rotatable stirrer in a mixing chamber having specified feed
means.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, 9 for continuous liquid phase
colloid systems (e.g., foams, emulsions, suspensions,
dispersions) or agents for such systems or making or
stabilizing such systems or agents, when generically claimed
or when there is no hierarchically superior provision in the
USPC for the specifically claimed art.
Subclass:
280
With movable element actuated by material:
This subclass is indented under subclass 279. Subject matter
wherein the movement of the material being mixed causes
movement of an element within the chamber.
(1) Note. The element may be a stirrer or may be mounted on
either the container or a stirrer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
168.2 for a rotatable stirrer in a mixing chamber driven by
material fed to the mixing chamber.
Subclass:
281
With support for attachment to mixing chamber rim:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer has means to hold the stirrer on the rim
of the mixing chamber.
Subclass:
282
With motor drive:
This subclass is indented under subclass 281. Subject matter
including a power source for converting one form of energy
into another to cause motion of the stirrer.
Subclass:
283
With gear drive:
This subclass is indented under subclass 281. Subject matter
including at least two members having meshing teeth, at least
one of said members rotatable by a source of power and such
rotation causing the other member to rotate.
Subclass:
284
Including adjustable rim contact support:
This subclass is indented under subclass 283. Subject matter
wherein the support attaching the stirrer to the rim has one
or more mechanical elements which may be varied.
Subclass:
285
Adjustable:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer's position may be moved relative to the
mixing chamber prior to agitation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 for an adjustable stirrer and a mixing chamber removable
from a support.
254 for a rotatable and adjustable stirrer mounted in a
removable mixing chamber closure.
Subclass:
286
Axially:
This subclass is indented under subclass 285. Subject matter
wherein the stirrer is positioned along its axis of
rotation.
Subclass:
287
Planetary:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer rotates on its own axis as well as
revolves about a second and different axis.
Subclass:
288
Axes of rotation and revolution parallel:
This subclass is indented under subclass 287. Subject matter
wherein the stirrer axis is parallel to the axis about which
the stirrer revolves.
Subclass:
289
Also axially reciprocable:
This subclass is indented under subclass 279. Subject matter
wherein the rotatable stirrer also has axial movement
alternatively back and forth in a straight line.
Subclass:
290
In at least one of intercommunicating adjacent mixing
chambers:
This subclass is indented under subclass 279. Subject matter
wherein a rotatable stirrer is located within at least one of
a plurality of mixing chambers which are in communication
with each other so that material may flow from one chamber to
another.
(1) Note. The communication may be by means of a conduit or
through or across a partition separating the chambers.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154.1 for a mixing chamber combined with a feeder or supply
reservoir and an agitator in the feed or reservoir.
Subclass:
291
Plural stirrers on parallel axes in adjacent mixing
chambers:
This subclass is indented under subclass 290. Subject matter
wherein there is at least one stirrer in at least two mixing
chambers and the axis of the stirrers are parallel to each
other.
Subclass:
292
Plural stirrers:
This subclass is indented under subclass 279. Subject matter
wherein there is more than one stirrer and at least one of
them rotates.
Subclass:
293
Coaxial:
This subclass is indented under subclass 292. Subject matter
wherein the stirrers have coincident axes.
Subclass:
294
Differing in speed:
This subclass is indented under subclass 293. Subject matter
wherein one stirrer moves at a rate unequal to the rate of
motion of another stirrer.
Subclass:
295
Diverse stirrers:
This subclass is indented under subclass 293. Subject matter
wherein the stirrers are of a different type.
Subclass:
296
Rotating in opposite directions:
This subclass is indented under subclass 293. Subject matter
wherein the stirrers are rotatable and are driven in opposite
directions relative to each other.
Subclass:
297
On parallel axes:
This subclass is indented under subclass 292. Subject matter
wherein at least two of the stirrers are mounted so as to
extend in the same direction.
Subclass:
298
Differing in speed:
This subclass is indented under subclass 298. Subject matter
wherein one stirrer moves at a rate unequal to the rate of
motion of another stirrer.
Subclass:
299
Diverse stirrers:
This subclass is indented under subclass 297. Subject matter
wherein the parallel stirrers are of a different type.
Subclass:
300
Rotating in opposite directions:
This subclass is indented under subclass 297. Subject matter
wherein the parallel stirrers are rotating in opposite
directions relative to each other.
Subclass:
301
Intermeshing with each other:
This subclass is indented under subclass 297. Subject matter
wherein one of the stirrers has a profile which contacts a
mating surface of a parallel stirrer along the length
thereof.
Subclass:
302
Having cooperating stationary element:
This subclass is indented under subclass 279. Subject matter
wherein the mixing chamber has an immovable element therein
which cooperates with the rotatable stirrer to effect or
perfect agitation.
(1) Note. Included here is a stationary scraper, wiper, or
brush for removing material from the stirrer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
164.4 for a stationary deflector in a mixing chamber having
a rotating stirrer and specified feed means.
165.2 for a deflector in a mixing chamber, material being
introduced into the chamber so as to cause rotary motion of
the material therein.
171.1 for a rotating stirrer and cooperating stationary
element in a mixing chamber including a liquid injector.
174.1 for a stationary deflector in a mixing chamber having
a liquid injector.
181.5 for a mixing chamber without a moving stirrer having
specified feed means and in which material is mixed by flow
past a stationary deflector.
181.7 for a mixing apparatus having plural feed means in
which a stirrer and mixing chamber wall are separated by a
small distance and cooperate to shear the material at a rate
sufficient to mix the material.
253 for a rotatable stirrer mounted in a removable mixing
chamber closure and cooperating with a stationary element.
264 for a centrifugal impeller with an outer stationary
ring.
309 for a rotatable stirrer in a mixing chamber and a
movable scraper, wiper or brush for removing material from
the chamber wall surface.
336 for a flow-through mixing chamber without a moving
stirrer having a stationary deflector for dividing and
recombining material flowing through the mixing chamber.
Subclass:
303
Interdigitating:
This subclass is indented under subclass 302. Subject matter
wherein at least one of the stirrers or immovable elements
has at least two adjacent projections and the other has at
least one projection which extends between the previous two
adjacent projections.
Subclass:
304
Parallel to axis of rotation:
This subclass is indented under subclass 303. Subject matter
wherein the projections extend in a direction parallel to the
axis of rotation.
Subclass:
305
Cylindrical or conical stirrer or element:
This subclass is indented under subclass 302. Subject matter
wherein either the stirrer or stationary element has a
substantially cylindrical or substantially conical
configuration.
(1) Note. The term "substantially conical" is intended to
included truncated conical elements.
Subclass:
306
Element mounted on mixing chamber end wall:
This subclass is indented under subclass 302. Subject matter
wherein the stationary element is attached to the end of the
mixing chamber.
Subclass:
307
Element mounted on cylindrical mixing chamber wall:
This subclass is indented under subclass 302. Subject matter
wherein the stationary element is attached to the curved wall
of a substantially cylindrical mixing chamber.
Subclass:
308
Collapsible articulated stirrer:
This subclass is indented under subclass 279. Subject matter
wherein the rotatable stirrer has means for enabling the
stirrer to be folded into a more compact shape.
(1) Note. Normally the folding is for insertion into and out
of a reduced opening in the mixing chamber.
Subclass:
309
Including scraper, wiper, or brush:
This subclass is indented under subclass 279. Subject matter
including an element having an edge of a flaccid surface or a
plurality of bristles movable in contact with or in close
proximity to a wall of the chamber for removing material from
the wall surface.
SEE OR SEARCH THIS CLASS, SUBCLASS:
67 for similar apparatus disclosed for use as a mortar
mixer.
302 for a rotatable stirrer and a cooperative stationary
scraper, wiper, or brush for removing material from the
stirrer.
Subclass:
310
Helical type:
This subclass is indented under subclass 309. Subject matter
wherein the edge has a spiral configuration extending axially
about the axis of rotation of the stirrer.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for helical-type deflector in a rotatable mixing
chamber.
320 for a helical ribbon stirrer in a stationary mixing
chamber.
338 for a deflector having curved surfaces and located in
stationary flow-through mixing chamber.
339 for such a deflector in the form of a helical ribbon.
Subclass:
311
Pivotally mounted on noncoincident axis:
This subclass is indented under subclass 309. Subject matter
wherein the element is pivotally mounted on the support about
an axis other than the axis of rotation of the stirrer.
Subclass:
312
Plural distinct scraping edges or wiping surfaces:
This subclass is indented under subclass 309. Subject matter
having more than one discrete scraping edge or wiping
surface.
(1) Note. The edges may be either on a single element or on
separate elements.
Subclass:
313
Axially offset:
This subclass is indented under subclass 312. Subject matter
wherein the two scraping edges are either spaced apart in the
direction of the axis of rotation of the stirrer or wherein
each edge has a portion extending beyond the other edge in
the axial direction.
Subclass:
314
Mounted in mixing chamber bottom wall:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer is carried by the bottom wall of the
mixing chamber.
Subclass:
315
Disk-type stirrer:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer has a generally flat plate-like
configuration.
Subclass:
316
Apertured or notched:
This subclass is indented under subclass 315. Subject matter
wherein the stirrer has an opening therethrough or indent in
the outer edge.
Subclass:
317
With projection:
This subclass is indented under subclass 315. Subject matter
wherein the stirrer has an element projecting from a surface
or the periphery of the stirrer.
Subclass:
318
Screw-type stirrer:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer comprises a helical ribbon rotatable
about its longitudinal axis.
SEE OR SEARCH THIS CLASS, SUBCLASS:
79 for a stirrer comprising a through-pass screw conveyor.
157.2 for a mixer including a screw-type stirrer and screw
conveyor material feeder.
Subclass:
319
With additional agitator elements on screw:
This subclass is indented under subclass 318. Subject matter
including other agitator elements on the stirrer.
(1) Note. The additional elements may be on the helical
ribbon or on the stirrer shaft.
Subclass:
320
Openwork helical ribbon:
This subclass is indented under subclass 318. Subject matter
wherein the helical ribbon has an open central portion for
flow of material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for a helical-type deflector in a rotatable mixing
chamber.
310 for a helical-type scraper in a stationary mixing
chamber.
339 for a helical ribbon deflector in a stationary
flow-through mixing chamber.
Subclass:
321
Opposite pitch:
This subclass is indented under subclass 318. Subject matter
wherein the stirrer includes a helical ribbon portion of
opposite pitch.
Subclass:
322
Discontinuous screw:
This subclass is indented under subclass 318. Subject matter
wherein the helical ribbon is interrupted along its length.
Subclass:
323
Varying diameter of convolutions or shank or varying pitch:
This subclass is indented under subclass 318. Subject matter
wherein the helical ribbon changes diameter along its length,
or the diameter of a shaft supporting the ribbon changes, or
the distance between the convolutions of the helical ribbon
changes.
Subclass:
324
Apertured or notched:
This subclass is indented under subclass 318. Subject matter
wherein the helical ribbon has an opening therethrough or a
notch on the edge of the ribbon or the flow of material.
SEE OR SEARCH THIS CLASS, SUBCLASS:
320 for a helical ribbon with an open central portion.
Subclass:
325.1
Relatively fixed plural elements:
This subclass is indented under subclass 279. Subject matter
wherein the rotatable stirrer comprises a plurality of
agitating elements rigidly secured to a rotatable shaft.
(1) Note. Contiguous agitating portions are considered to
form a single agitating element except when they differ
substantially in geometric form. A thin member that can be
regarded as consisting of agitating portions that differ
substantially only in width, and form continuous major
working surfaces that may be flat, curved, or bent is
considered a single agitating element. An agitating portion
is a piece of material constructed and arranged to produce
significant agitation of material upon movement through the
material. For example, agitating portions that project from
another agitating portion are considered separate agitating
elements.
(2) Note. Agitating elements may be interconnected by
nonagitating portions. Agitating portions connected only by
nonagitating portions are considered separate agitating
elements. The shaft of the stirrer is a nonagitating
portion.
Subclass:
325.2
Pinlike radially projecting element:
This subclass is indented under subclass 325.1. Subject
matter wherein an element is (a) elongated in the radial
direction of the shaft, (b) has a substantially constant
cross section perpendicular its longitudinal axis whose
thickness is similar in all directions, and (c) has a free
radially outer end.
(1) Note. The element may have a cross section that is
roughly a square, regular hexagonal, circle, etc.
Subclass:
325.3
Spiral arrangement:
This subclass is indented under subclass 325.1. Subject
matter wherein the elements on the rotatable shaft are
arranged in a helical pattern thereon.
(1) Note. Not all the elements on the shaft need to be
arranged in a helical pattern.
Subclass:
325.4
Element mounted parallel to shaft, spaced therefrom, and
having at least one free end:
This subclass is indented under subclass 325.1. Subject
matter wherein one of the elements extends parallel to the
axis of the shaft in spaced relation to the shaft and has a
free end to which no supporting structure is directly
attached.
Subclass:
325.5
Opposite free ends:
This subclass is indented under subclass 325.4. Subject
matter wherein the element has unsupported ends opposite each
other.
Subclass:
325.6
Looped wirelike element:
This subclass is indented under subclass 325.1. Subject
matter wherein one of the elements is a wire or rodlike
element that is configured to form by itself a substantially
continuous closed curve.
Subclass:
325.7
Openwork having element supported by central shaft at
opposite ends:
This subclass is indented under subclass 325.1. Subject
matter wherein an element is independently supported at
opposite ends and spaced from the shaft between the ends.
(1) Note. The element may be supported at each end by direct
attachment to the shaft or by attachment to an intermediate
supporting member. For the ends to be independently
supported, any intermediate supporting members must be
separate members connected to the shaft.
Subclass:
325.8
Element axis parallel to shaft:
This subclass is indented under subclass 325.7. Subject
matter wherein the element is arranged with its axis parallel
to the axis of the shaft.
Subclass:
325.9
Apertured element:
This subclass is indented under subclass 325.8. Subject
matter wherein the element has at least one opening formed
therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
90 for a rubber or heavy plastic working screw stirrer
having apertures.
316 for a disk-type stirrer having apertures.
324 for a screw-type stirrer having apertures.
325.91 for a stirrer having an apertured blade that is not
parallel to the shaft axis.
325.93 for a stirrer having apertured rectangular elements
having planar working surfaces.
328.2 for a stirrer having relatively fixed agitating
elements and including an apertured element.
Subclass:
325.91
Apertured element:
This subclass is indented under subclass 325.7. Subject
matter wherein the element has an opening extending through
the element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
90 for a rubber or heavy plastic working screw stirrer
having apertures.
316 for a disk-type stirrer having apertures.
324 for a screw-type stirrer having apertures.
325.93 for a stirrer having apertured rectangular elements
having planar working surfaces.
325.9 for a stirrer having an apertured blade that is
parallel to the shaft axis.
328.2 for a stirrer having relatively fixed agitating
elements and including an apertured element.
Subclass:
325.92
Flat element having major surface lying in plane
substantially including shaft axis (e.g., paddle type):
This subclass is indented under subclass 325.1. Subject
matter wherein an element has a substantially planar working
surface thereon and the axis of the shaft lies substantially
in the plane of the working surface.
Subclass:
325.93
Apertured element:
This subclass is indented under subclass 325.92. Subject
matter wherein the element has an opening formed therein.
SEE OR SEARCH THIS CLASS, SUBCLASS:
90 for a rubber or heavy plastic working screw stirrer
having apertures.
316 for a disk-type stirrer having apertures.
324 for a screw-type stirrer having apertures.
325.9 for a stirrer having an apertured blade that is
parallel to the shaft axis.
325.91 for a stirrer having an apertured blade that is not
parallel to the shaft axis.
328.2 for a stirrer having relatively fixed agitating
elements including an apertured element.
Subclass:
325.94
Openwork having substantially no central shaft:
This subclass is indented under subclass 325.1. Subject
matter wherein the elements are arranged to form a
substantially open central portion along the axis of rotation
and there is no shaft along the axis of rotation in the open
central portion.
SEE OR SEARCH THIS CLASS, SUBCLASS:
320 for a screw-type stirrer in the form of an openwork
helical ribbon.
325.7 for a rotatable stirrer having an agitating element
forming an openwork stirrer and having a central shaft
present along the axis of rotation of the stirrer in the same
axial location as the agitating element.
Subclass:
326.1
Adjustable or flexible:
This subclass is indented under subclass 325.1. Subject
matter wherein an element is capable of being adjusted
relative to the shaft or an element is configured and
intended to flex during mixing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
201 and 207, for an adjustable stirrer associated with a
removable mixing chamber.
254 for an adjustable rotatable stirrer mounted on a
removable mixing chamber closure.
284 for an adjustable rotatable stirrer mounted on an
adjustable support.
285 for a rotatable stirrer adjustable relative to a mixing
chamber.
Subclass:
327.1
Of different pitch:
This subclass is indented under subclass 325.1. Subject
matter wherein an element has an angular inclination relative
to its plane or surface of rotation that differs from that of
another element.
(1) Note. Two elements are considered to have the same pitch
if the pitch of one element at any radius from the axis of
rotation at which both elements are present is the same as
that of the other element at the same radius.
SEE OR SEARCH THIS CLASS, SUBCLASS:
88 for a screw-type stirrer for mixing rubber or heavy
plastics having sections of different pitch.
323 for a general-purpose screw stirrer having varying
pitch.
326.1 for a rotatable stirrer having an element whose pitch
is adjustable.
327.4 for a rotatable stirrer having an element with
sections of different pitch.
Subclass:
327.2
Rodlike element having enlarged outer end:
This subclass is indented under subclass 327.1. Subject
matter wherein an element is bar shaped, is elongated, and
has an enlarged radially outer end.
Subclass:
327.3
Elements of opposite pitch:
This subclass is indented under subclass 327.1. Subject
matter wherein an element is angled to move material in one
direction and another element is angled to move material in
the opposing direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
321 for a screw-type stirrer having sections of opposite
pitch.
327.4 for a rotatable stirrer including agitating elements
having sections of opposite pitch on the same element.
Subclass:
327.4
Oppositely pitched element sections:
This subclass is indented under subclass 327.1. Subject
matter wherein a portion of an element is angled to move
material in one direction and another portion is angled to
move material in the opposing direction.
SEE OR SEARCH THIS CLASS, SUBCLASS:
327.3 for a rotatable stirrer including different elements
having opposite pitches.
Subclass:
328.1
Notched element
This subclass is indented under subclass 325.1. Subject
matter wherein an element has a cutout portion in its edge.
SEE OR SEARCH THIS CLASS, SUBCLASS:
90 for a notched screw stirrer for mixing rubber or heavy
plastic.
316 for a notched disk-type stirrer.
324 for a notched screw-type stirrer of general utility.
Subclass:
328.2
Apertured element:
This subclass is indented under subclass 325.1. Subject
matter wherein an element has an opening therethrough.
SEE OR SEARCH THIS CLASS, SUBCLASS:
90 for a rubber or heavy plastic working screw stirrer
having apertures.
316 for a disk-type stirrer having apertures.
324 for a screw-type stirrer having apertures.
325.93 for a stirrer having an apertured rectangular element
having a planar working surface.
325.9 for a stirrer having an apertured blade that is
parallel to the shaft axis.
325.91 for a stirrer having an apertured blade that is not
parallel to the shaft axis.
Subclass:
328.3
Noncircular aperture:
This subclass is indented under subclass 328.2. Subject
matter wherein the aperture has a shape that is noncircular.
Subclass:
328.4
Square aperture:
This subclass is indented under subclass 328.3. Subject
matter wherein the aperture is bounded by four sides
substantially equal in length and intersect at right angles.
Subclass:
329.1
Diverse size or shape:
This subclass is indented under subclass 325.1. Subject
matter wherein one element is of different dimensions or
configuration than another element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
81 for a screw-type stirrer having additional agitating
elements on the screw.
104 295, and 299, for a mixing apparatus including plural
diverse stirrers.
319 for a screw-type stirrer having additional agitating
elements on the screw.
Subclass:
329.2
Elements having different lengths:
This subclass is indented under subclass 329.1. Subject
matter wherein the longest dimension of one element is
different from that of another element.
Subclass:
329.3
Including movable scraper:
This subclass is indented under subclass 329.1. Subject
matter wherein an agitating element is intended to
substantially engage and move relative to a wall of the
mixing chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
52 for a mortar-type mixer having a scraper for removing
material from a mixing chamber.
67 for a scraper in a mortar-type mixer for removing
material from the wall of a mixing chamber.
221 for a scraper for moving material away from a wall of a
rotatable mixing chamber.
309 for a mixing apparatus including a scraper or wiper
formed of a flaccid material or of bristles.
Subclass:
330.1
Axially directing blade (e.g., propeller, helix section,
etc.):
This subclass is indented under subclass 325.1. Subject
matter wherein an agitating element is relatively thin
compared to its other dimensions and is angularly positioned
with respect to the rotatable shaft so as to produce movement
of the material in a direction having a component parallel to
the axis of rotation.
SEE OR SEARCH THIS CLASS, SUBCLASS:
270 for a pump-type mixing apparatus including a
propeller-type stirrer.
327.1 and 327.4, for a stirrer having an agitating element
pitched to move material axially or radially of the stirrer.
Subclass:
330.2
Blade detachably secured to hub:
This subclass is indented under subclass 330.1. Subject
matter wherein the rotatable shaft has an enlarged section
configured to receive the blade in a readily removable
manner.
(1) Note. The blade may secured to the hub by screws, for
example.
Subclass:
330.3
Bowed or angled out of plane of rotation:
This subclass is indented under subclass 330.1. Subject
matter wherein the blade is curved or tilted to extend
substantially out of the plane that is perpendicular to the
axis of rotation of the shaft and that passes through a point
of connection between the blade and the shaft.
Subclass:
330.4
Outwardly increasing width:
This subclass is indented under subclass 330.1. Subject
matter wherein the widest dimension of the blade measured
generally perpendicularly to a radial line passing through
the blade substantially continuously increases in a radially
outward direction from adjacent the shaft to substantially
the outer end of the blade.
Subclass:
330.5
Outwardly decreasing width:
This subclass is indented under subclass 330.1. Subject
matter wherein the widest dimension of the blade measured
generally perpendicularly to a radial line passing through
the blade substantially continuously decreases in a radially
outward direction from adjacent the shaft to substantially
the outer end of the blade.
Subclass:
330.6
Nonhorizontal, nonvertical axis of rotation:
This subclass is indented under subclass 330.1. Subject
matter wherein the axis of rotation of the shaft is neither
vertical nor horizontal.
Subclass:
330.7
Convex trailing edge in plane of rotation:
This subclass is indented under subclass 330.1. Subject
matter wherein the trailing edge of the projection of the
blade onto the surface of rotation of the blade is convex
substantially throughout its length.
Subclass:
331
With specified mounting means:
This subclass is indented under subclass 279. Subject matter
wherein the stirrer has a particularly described means for
either mounting the stirrer shaft to a drive means or for
mounting the stirrer within the container, e.g., bearing
means.
(1) Note. Mere recitation of a mounting means broadly will
not be considered specified mounting means.
Subclass:
332
Rectilinearly reciprocable stirrer:
This subclass is indented under subclass 241. Subject matter
wherein the stirrer moves bodily back and forth in a straight
line so that at any instant all parts of the moving body
moves in the same direction at the same rate.
Subclass:
333
In contact with mixing chamber:
This subclass is indented under subclass 332. Subject matter
wherein the stirrer, while moving back and forth for
agitating, is in contact with at least a portion of the
mixing chamber surface.
Subclass:
334
Plural:
This subclass is indented under subclass 332. Subject matter
wherein there is more than one stirrer and at least one of
which moves bodily back and forth in a straight line.
Subclass:
335
On parallel axes:
This subclass is indented under subclass 334. Subject matter
wherein the stirrers have parallel axes.
Subclass:
336
STATIONARY DEFLECTOR (DIVIDING AND RECOMBINING TYPE) IN
FLOW-THROUGH MIXING CHAMBER:
This subclass is indented under the class definition.
Apparatus and corresponding methods including a mixing
chamber designed to receive the material at one end of a
closed path and to discharge it at the other end in a
continuous flow and a device positioned in the path so as to
divert or separate a portion of the stream of material in the
path relative to other portions and then permit the portions
to recombine so as to commingle.
(1) Note. The flow of material may, by disclosure, be either
under the force of gravity or an applied force.
SEE OR SEARCH THIS CLASS, SUBCLASS:
150.1 for a device of this subclass including specified feed
means.
181.5 for a flow-through mixing chamber having a stationary
deflector (not limited to the dividing and recombining type)
and plural material feed means.
302 for a stationary element in a mixing chamber cooperating
with a rotating stirrer. See the search notes in subclass 302
for other locations of mixing apparatus having stationary
agitating elements.
SEE OR SEARCH CLASS:
138, Pipes and Tubular Conduits, 40 for a conduit with a
flow restrictor or deflector disclosed for use in forming
emulsions of a plurality of fluids. Where such a conduit has
additional combined features, such as means to feed material
to the restrictor, etc., the patents have been placed in
Class 366.
Subclass:
337
Angularly related flat surfaces:
This subclass is indented under subclass 336. Subject matter
wherein the deflector structure includes a plurality of flat
surfaces, each positioned at an acute angle to the flow path
and also in angular relation to each other.
Subclass:
338
Curved deflector surface:
This subclass is indented under subclass 336. Subject matter
wherein the deflector comprises surface extending along the
path which are bent or twisted gradually and without
angularity.
Subclass:
339
Helical ribbon or strand:
This subclass is indented under subclass 338. Subject matter
wherein the deflector is an elongated strip or slender rod
twisted in a spiral shape extending along the path.
SEE OR SEARCH THIS CLASS, SUBCLASS:
227 for a helical-type deflector in a rotatable mixing
chamber.
310 for a helical-type scraper in a stationary mixing
chamber.
320 for a helical ribbon stirrer in a stationary mixing
chamber.
Subclass:
340
Plate or block being apertured, notched, or truncated in
shape:
This subclass is indented under subclass 338. Subject matter
wherein the deflector is a disk or solid body extending
across the path and having an opening therethrough or an edge
portion out away or indented so as to permit portions of the
material to pass through.
Subclass:
341
STATIONARY MIXING CHAMBER:
This subclass is indented under the class definition.
Apparatus wherein the mixing chamber is in fixed position
during the agitation and includes internal structure designed
to deflect moving material within the chamber so as to cause
its agitation.
SEE OR SEARCH CLASS:
206, Special Receptacle or Package, 217 for a drinking
vessel and material packaged therein with a space provided
for the addition of a liquid to be mixed with the material.
220, Receptacles, appropriate subclasses for details of a
container structure.
Subclass:
342
AGITATOR:
This subclass is indented under the class definition.
Subject matter comprising an agitating means, per se, not
provided for in any of the preceding subclasses.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for a vibrator, per se, disclosed for use an agitating
device.
129 for an operator-supported stirrer.
SEE OR SEARCH CLASS:
416, Fluid Reaction Surfaces (i.e., Impellers), for an
impeller which has no disclosed agitating function.
Subclass:
343
Stirrer:
This subclass is indented under subclass 343. Subject matter
wherein the agitator is a stirrer.
Subclass:
344
With ejector:
This subclass is indented under subclass 343. Subject matter
wherein the stirrer has a spindle fastened in a socket of
motor drive means for the stirrer and including means for
expelling the spindle from the socket.
Subclass:
345
Ambulant over material-supporting surface:
This subclass is indented under subclass 343. Subject matter
wherein the stirrer is mounted on wheels, skids, tracks, or
the like for movement along a surface intended to support
material for agitation by the stirrer.
Subclass:
346
Track guided:
This subclass is indented under subclass 345. Subject matter
wherein the stirrer is mounted on tracks.
Subclass:
347
COVER OR SHIELD FOR MIXING CHAMBER:
This subclass is indented under the class definition.
Subject matter comprising a closure or protective device for
the opening in a mixing chamber designed to cooperate with a
stirrer in the chamber.
(1) Note. The cover may be shaped to assist in the agitation
or it may be provided with an aperture for the stirrer to
extended therethrough into the chamber.
SEE OR SEARCH THIS CLASS, SUBCLASS:
154.1 for a stirrer mounted in a removable container
closure.
349 for a protective cover for a stirrer when not in use.
Subclass:
348
METHOD:
This subclass is indented under the class definition. Method
which is not provided for in any of the preceding subclass.
Subclass:
349
MISCELLANEOUS:
This subclass is indented under the class definition.
Apparatus which is not provided for in any of the preceding
subclasses.
CROSS-REFERENCE ART COLLECTIONS
The following subclasses are collections of published
disclosures pertaining to various specified aspects of the
agitating art which aspects do not form appropriate bases for
subclasses in the foregoing classification (i.e., subclasses
superior hereto in the schedule), wherein original copies of
patents are placed on the basis of proximate function of the
apparatus. These subclasses assist a search based on remote
function of the apparatus and may be of further assistance to
the searcher, either as a starting point in further related
fields of search inside or outside the class. Thus, there is
here provided a second access for retrieval of a limited
number of types of disclosures.
(1) Note. Disclosures are placed in these subclasses for
their value as references and as leads to appropriate main or
secondary fields of search without regard to their original
classification of their claimed subject matter.
(2) Note. The disclosure found in the following subclasses
are examples only of the indicated subject matter, and in no
instance do they represent the entire extent of the prior
art.
Subclass:
600
BODINE VIBRATOR:
Collection of patents to Mr. Bodine that pertain to
agitating.
SEE OR SEARCH THIS CLASS, SUBCLASS:
108 for mixers using a Bodine vibrator.
Subclass:
601
MOTOR CONTROL:
Patents pertaining to the stopping starting, or the
regulation of motor speed.
SEE OR SEARCH THIS CLASS, SUBCLASS:
206 for motor control of mixing chamber that is removable
from the stirrer and support.
249 and 292, for motor control of stirrer within stationary
mixing chamber.
Subclass:
602
AMALGAM MIXER, E.G., DENTAL FILLING:
Apparatus adapted to mix dental amalgam.
SEE OR SEARCH THIS CLASS, SUBCLASS:
197 and 208+, for a mixing chamber that is removable from a
support and moved to produce agitation of the material.
Subclass:
603
ANIMAL FOOD MIXER:
Apparatus used for the particular mixing of feed for
animals.
SEE OR SEARCH THIS CLASS, SUBCLASS:
266 for feed mixers that operate as a pump-type mixer.
293 for plural stirrers for mixing animal food.
319 for screw-type stirrer for mixing animal food.
Subclass:
604
LATHER MIXER:
Mixer for the production of foam or lather.
SEE OR SEARCH THIS CLASS, SUBCLASS:
279 for rotatable stirrer in stationary mixing chamber for
producing lather or foam.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, 9 for continuous liquid phase
colloid systems (e.g., foams, emulsions, suspensions,
dispersions) or agents for such systems or making or
stabilizing such systems or agents, when generically claimed
or when there is no hierarchically superior provision in the
USPC for the specifically claimed art.
Subclass:
605
PAINT MIXER:
Apparatus for the stirring of paint consisting of either a
device for moving the paint container or a stirrer to be
inserted into the container for mixing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
208 for apparatus for mixing paint by imparting movement to
the container.
241 for a stirrer to be inserted into the container.
SEE OR SEARCH CLASS:
516, Colloid Systems and Wetting Agents; Subcombinations
Thereof; Processes of Making, 9 for continuous liquid phase
colloid systems (e.g., foams, emulsions, suspensions,
dispersions) or agents for such systems or making or
stabilizing such systems or agents, when generically claimed
or when there is no hierarchically superior provision in the
USPC for the specifically claimed art.
Subclass:
606
TRACTOR-MOUNTED MORTAR MIXING CHAMBER:
Apparatus including mortar mixing that is adapted to be
mounted on and driven by a farm-type tractor.
SEE OR SEARCH THIS CLASS, SUBCLASS:
45 for tractor-mounted mortar mixer tiltable for deliver.
54 for tractor-mounted mortar mixer that is rotatable.
64 for tractor-mounted mortar mixer having a movable
stirrer.
Subclass:
607
CHAIN-TYPE STIRRER:
Apparatus for mixing wherein either the mixing chamber or the
stirrer have a chain element thereon for mixing.
SEE OR SEARCH THIS CLASS, SUBCLASS:
53 for movable chamber having a chain element.
64 for movable stirrer having a chain element.
Subclass:
608
STIRRER IN MIXING CHAMBER SIDE WALL:
This subclass is indented under the class definition.
Subject matter comprising a mixing chamber having a bottom
wall and an upwardly extending side wall and a stirrer
extending through the side wall.
Information Products Division -- Contacts
Questions regarding this report should be directed to:
U.S. Patent and Trademark Office
Information Products Division
PK3- Suite 441
Washington, DC 20231
tel: (703) 306-2600
FAX: (703) 306-2737
email: oeip@uspto.gov
Last Modified: 6 October 2000